>>323581978
you become more accustomed even with a co-worker you see at lunch but never talk to by them becoming a part of your routine, speaking from experience unless you somehow manage to make enemies by being a dick to everyone you will eventually see them as something you're accustomed to like a regular shop clerk or a busdriver you see each day, that will help alleviate some of the anxiety and seeing the people interact with each other will make you feel like you're part of that interaction through proxy, eventually you will have hanged out with them enough to "know" them and then hopefully at some point you feel comfortable enough to interact with them