I'm a newbie and while I really agree with what TofuTofu and RSD say about self-amusement I haven''t had a lot of chances to learn having fun on parties/ in clubs in my life. I sucked socially in highschool and I think I just don't know how to have fun.

I'm pretty sure this will also help me with approaching (oh guys it's hard for me). After I do approach I get positive energy and laugh more etc. but it dies out quickly, so...

what can I do instead of approaching (no I won't stop but if I have fun it will not be as hard) that is achievable for a newbie who is kinda hardcase? What are some easy ways/ games I can do to start generating fun?