This study aimed to examine participants' predication patterns in small group communications. Distinctive prediction patterns from utterance data were extracted from two experiments which were different in acquaintanceship, controlled situations and group size. Specific patterns were related to personal traits. The interesting difference of the predication patterns between Study 1 and Study 2 was the presence or absence of "listeners." In Study 1, which has conversations by three persons, the participants needed to be actively involved in conversations to establish communication. In contrast, the participants in large groups were able to participate passively in conversation. Therefore, the notion of "listener" as a predication pattern was extracted from Study 2, which has conversations by five persons.