The process of language socialization also occurs through the language production which in the present study refers to the spoken productions of the participants, who are five EFL in-service teachers in a private English institute, through 20 sessions of group-discussions monitored by their supervisor, who is also the researcher, over two semesters. The microanalysis of linguistic data produced by the participants can help figure out ideational, interpersonal and textual functional choices as well as contextual factors including field, tenor and mode of the spoken language which are produced by the participants and how this may influence their group discussions. Systemic Functional Linguistics approach can be seen as a suitable linguistic tool for analyzing the oral texts which are produced by learners to track their progress. The findings were obtained from the recorded interviews and group discussions of the participant teachers. The data was mainly analysed based on SFL (Systematic Functional Linguistics) Approach along with Appraisal Method.