IF this is a serious topic, I can tell you what NOT to do. I also used to be chronically shy (my treatment and medication for bipolar seems to have cured that), yet people that didn’t know me interpreted that as aloof and supercilious, tended to avoid me, and didn’t bother getting to know me (I was the life and soul of the party with friends!).
I guess the trick is to (sorry for the cliché) be ‘at one’ with yourself. You can’t expect others to like you if you don’t like yourself. I have now learnt to love myself (blisters to prove it, failing eyesight too), and I’ve now gone to the extreme of not actually giving a monkeys whether I’m liked by others and just getting on with it.
I guess practice makes perfect too, the more people you meet and interact with, the easier that becomes. I was quite reclusive once, and the mere thought of meeting someone new could bring on a panic attack.
Good luck.
Edited for grammer/spelling/intelligibility/sense