"Mixing in" is a phrasal verb that refers to the act of blending or integrating oneself into a group or conversation. Synonyms for this expression include "joining in," "participating," "interacting," "mingling," "socializing," and "engaging." Another synonym is "integrating," which refers to the process of becoming a part of something. Other similar words include "immersing," "associating," "assimilating," and "coalescing." When we use these words, we are referring to the same idea; the action of becoming a member of a group or community. Overall, there are many words that can be used in place of "mixing in," each bringing its unique spin to the definition and message.