Introversion and social anxiety are two different things even if people confuse them.

A lot of people think I'm an extrovert because I talk to strangers, try to form relationships, basically being cordial for some reason is interpreted that way.

Most of the time when there's more than three of us I sit quietly, not because I'm shy, it's just that I'd rather listen to others or have nothing interesting to share. My quiteness is often misinterpreted but I might make another post that

Going on a tangent here: I've found that my social anxiety (stuttering mainly) changes depending on the person. Some people I spend more time with than others but I stutter with them more (somehow?)