The main problem in the interaction of social worker and their clients is about communication. To make thediagnosis of client wellness, social workers face a challenge to communicate professionally with their clientsboth verbally and nonverbally. This study tested the variables which impact the client participation level onthe interaction and intervention. In this, researchers used qualitative paradigm with explanatory approach. Ittested verbal and non-verbal communication on client participation level. The analysis result showed thatverbal and nonverbal communication simultaneously improved the client participation level. It is suggestedthat social worker improved their competences both verbal and nonverbal communication through suitabletraining.