Getting Started in Social Situations teaches that making friends is more complicated as an adult than as a child. Tips are provided for starting conversations with strangers, which can also apply to those you already know. Rejection is a possibility, but it shouldn’t be taken personally. Initiating conversations may be seen as rude in some U.S. places but is encouraged elsewhere. Safe positive comments, avoiding awkward topics, shared gripes, and other subtle signals like eye contact and body language are discussed to help you navigate social interactions. The importance of small talk in making first impressions is highlighted.
https://socialcommunication.truman.edu/attitudes-emotions/social-initiation/