Assertive Body Language

A psychoeducational handout outlining the role of body language in assertive communication.

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Professional version

Offers theory, guidance, and prompts for mental health professionals. Downloads are in Fillable PDF format where appropriate.

Client version

Includes client-friendly guidance. Downloads are in Fillable PDF format where appropriate.

Overview

Communication difficulties have been associated with various mental health issues, as well as challenges in relationships and the workplace. Over the last several decades, many assertiveness training programs have been developed to improve communication and increase self-confidence. A key aspect of assertive communication is body language, also known as non-verbal behaviour. The Assertive Body Language information handout outlines the essential components of assertive non-verbal behavior (such as assertive eye contact, voice tone, facial expressions, and posture) and contrasts them with passive and aggressive behaviours.

Why Use This Resource?

Non-verbal behavior supports assertive communication. This resource helps clients:

  • Become aware of how body language influences communication and interactions.
  • Clarify the differences between passive, aggressive, and assertive body language.
  • Use assertive body language, including assertive postures, gestures, and eye contact. 
  • Adjust their body language according to the situation. 

Key Benefits

Insightful

Helps clients recognize the impact of their non-verbal communication.

Clear

Distinguishes between passive, aggressive, and assertive body language.

Comprehensive

Describes assertive eye contact, voice tone, postures, gestures, and other key dimensions.

Accessible

Clear, practical, and easy to understand.

Who is this for?

Generalized Anxiety Disorder (GAD)

For anxious clients who struggle to express themselves.

Social Anxiety Disorder (SAD)

To encourage confident, respectful social interactions.

Depression

Supports clients whose communication is hindered by guilt, hopelessness, or low self-worth.

Relationship Issues

For clients experiencing interpersonal difficulties that are impacted by communication problems.

Low Self-Esteem

Encourages development of self-respect and clear expression of needs.

Workplace Difficulties

Supports effective communication with colleagues.

Integrating it into your practice

01

Discuss

Review the six domains of body language.

02

Compare

Contrast passive, assertive, and aggressive forms of each element.

03

Reflect

Help the client reflect on the body language they tend to use.

04

Practice

Use role-play and behavioral rehearsal to practice assertive body language.

05

Implement

Encourage clients to experiment with assertive body language between sessions.

Theoretical Background & Therapist Guidance

Effective communication is essential for sharing information, coordinating actions, and achieving personal and professional goals (Rohner & Schutz, 2024). It plays a key role in building healthy relationships, allowing individuals to express needs, build trust, and resolve conflicts (McKay et al., 2018).

Communication styles, particularly in assertiveness literature, are typically categorized as assertive or non-assertive (Bonham-Carter, 2012; Speed et al., 2018). Assertive communication is recognized as effective in many situations and is characterized by clear and honest expression; respect for oneself and others; and taking responsibility for communication outcomes.

Research indicates that various dimensions of non-verbal behavior impact assertive communication, including voice intonation and volume (Rose & Tryon, 1979), eye contact (Kolotkin et al., 1984), facial expressions (Romano & Bellack, 1980), gestures, and body posture (McFall et al., 1982). Generally speaking, moderate levels of non-verbal behaviors are optimal in assertiveness training, which includes an intermediate voice volume and tone, steady eye contact, calm facial expressions, flexible gestures, and an upright yet relaxed posture (Rakos, 1991). Proxemics, or personal space, also plays a role in assertive communication, though it has been less studied (Alberti & Emmons, 2017; Hall, 1966; McKay et al., 2018; Paterson, 2022) - what constitutes an appropriate physical distance tends to vary based on individual characteristics and cultural norms (Sorokowska et al., 2017).

What's inside

  • A client-friendly overview of assertive and non-assertive body language.
  • An introduction to assertiveness and assertive body language for therapists.
  • Suggestions for introducing and using the resource with clients.
  • Key references and recommended further reading.
Get access to this resource

FAQs

Assertive communication is direct, respectful, and honest, without being aggressive or submissive. It emphasizes mutual respect and personal responsibility.
This handout focuses on non-verbal behavior. It complements, rather than replaces, resources that focus on verbal assertiveness, such as using 'I-messages'.
Assertive body language usually feels more natural with practice. Clients can also experiment with assertive body language, discovering what feels authentic to them. Cultural and contextual relevance should always be respected.

How This Resource Improves Clinical Outcomes

  • Increases awareness of non-verbal communication.
  • Enhances congruence between verbal and non-verbal messages.
  • Supports assertiveness training and assertive communication.

References And Further Reading

  • Alberti, R. E., & Emmons, M. L. (2017). Your perfect right: Assertiveness and equality in your life and relationships (10th ed.). Impact Publishers.
  • Birdwhistell, R. (1970). Kinesics in context. University of Pennsylvania Press.
  • Bonaccio, S., O’Reilly, J., O’Sullivan, S. L., & Chiocchio, F. (2016). Nonverbal behavior and communication in the workplace: A review and an agenda for research. Journal of Management, 42, 1044-1074. DOI: 10.1177/0149206315621146.
  • Birtchnell, J. (1996). How humans relate: A new interpersonal theory. Psychology Press.
  • Birtchnell, J. (2002). Relating in psychotherapy: The application of a new theory. Brunner Routledge. DOI: 10.1002/cpp.615.
  • Bonham-Carter, D. (2012). Assertiveness: A practical guide. Icon Books.
  • Chłopicki, W. (2017). Communication styles: An overview. Styles of Communication, 9, 9-25.
  • Duckworth, M. P. (2009). Assertiveness skills and the management of related factors. In W. T. O’Donohue & J. E. Fisher (Eds.), General principles and empirically supported techniques of cognitive behavior therapy (pp. 124–132). John Wiley and Sons.
  • Hall, E. T. (1966). The hidden dimension. Doubleday.
  • Hall, J. A., Horgan, T. G., & Murphy, N. A. (2019). Nonverbal communication. Annual Review of Psychology, 70, 271-294. DOI: 10.1146/annurev-psych-010418-103145.
  • Hayward, M., Berry, K., McCarthy-Jones, S., Strauss, C., & Thomas, N. (2014). Beyond the omnipotence of voices: Further developing a relational approach to auditory hallucinations. Psychosis, 6, 242-252. DOI: 10.1080/17522439.2013.839735.
  • Kolotkin, R. A., Wielkiewicz, R. M., Judd, B., & Weiser, S. (1984). Behavioral components of assertion: Comparison of univariate and multivariate assessment strategies. Behavioral Assessment, 6, 61–78.
  • Linehan, M. M. (1979). Structured cognitive-behavioral treatment of assertion problems. In P. C. Kendall & S. V. Hollon (Eds.), Cognitive-behavioral interventions: Theory, research, and procedures (pp. 205-240). Academic Press.
  • Linehan, M. M., & Walker, R. O. (1983). The components of assertion: Factor analysis of a multimethod assessment battery. British Journal of Clinical Psychology, 22, 277-281. DOI: 10.1111/j.2044-8260.1983.tb00614.x.
  • McFall, M. E., Winnett, R. L., Bordewick, M. C., & Bornstein, P. H. (1982). Nonverbal components in the communication of assertiveness. Behavior Modification, 6, 121-140. DOI: 10.1177/01454455820061008.
  • McFall, R. M., & Twentyman, C. T. (1973). Four experiments on the relative contributions of rehearsal, modeling, and coaching to assertion training. Journal of Abnormal Psychology, 81, 199–218. DOI: 10.1037/h0034567.
  • McKay, M., Davis, M., & Fanning, P. (2018). Messages: The communication skills workbook (4th ed.). New Harbinger Publications.
  • Omura, M., Maguire, J., Levett-Jones, T., & Stone, T. E. (2017). The effectiveness of assertiveness communication training programs for healthcare professionals and students: A systematic review. International Journal of Nursing Studies, 76, 120-128. DOI: 10.1016/j.ijnurstu.2017.09.001.
  • Rakos, R. F. (1991). Assertive behavior: Theory, research, and training. Routledge.
  • Rohner, J., & Schutz, A. (2024). Psychology of communication. Springer.
  • Romano, J. M., & Bellack, A. S. (1980). Social validation of a component model of assertive behavior. Journal of Consulting and Clinical Psychology, 48, 478-490. DOI: 10.1037/0022-006X.48.4.478.
  • Rose, Y. J., & Tryon, W. W. (1979). Judgments of assertive behavior as a function of speech loudness, latency, content, gestures, inflection, and sex. Behavior Modification, 3, 112-123. DOI: 10.1177/014544557931008.
  • Rozelle, R. M., Druckman, D., & Baxter, J. C. (1986). Nonverbal communication. In O. Hargie (Ed.), A handbook of communication skills (pp. 59-94). Croom Helm.
  • Speed, B. C., Goldstein, B. L., & Goldfried, M. R. (2018). Assertiveness training: A forgotten evidence-based treatment. Clinical Psychology: Science and Practice, 25, e12216. DOI: 10.1111/cpsp.12216.
  • Sorokowska, A., Sorokowski, P., Hilpert, P., Cantarero, K., Frackowiak, T., Ahmadi, K., ... & Pierce Jr, J. D. (2017). Preferred interpersonal distances: A global comparison. Journal of Cross-Cultural Psychology, 48, 577-592. DOI: 10.1177/0022022117698039.
  • Suzuki, E., Saito, M., Tagaya, A., Mihara, R., Maruyama, A., Azuma, T., & Sato, C. (2009). Relationship between assertiveness and burnout among nurse managers. Japan Journal of Nursing Science, 6, 71-81. DOI: 10.1111/j.1742-7924.2009.00124.x.
  • Vagos, P., & Pereira, A. (2016). A cognitive perspective for understanding and training assertiveness. European Psychologist, 21, 109–121. DOI: 10.1027/1016-9040/a000250.