knowing yourself is important for connecting with others (for introverted people this is the case but if you are more extraverted this might be less important to you). a good tip is to truly listen to what people are saying. some people get bogged down in the details like eye contact and stuff, they are important but tend to come naturally when you can truly pay attention to what they are communicating and how they are communicating. then you can reply like you mean, which shows you are interested in the conversation. simple tip
https://forum.enlightenedstates.com/t/the-emotional-dampener/77979