Not a question but

Okay so, today I spent the afternoon with my best friend and one of her friends that I don't really know.
And later my best friend told me that it looked like I didn't like her friend or something.
So I realized it was not the first time someone told me that I seemed to not like someone else and that really it's just that I don't know how to act around people I don't know very well.
I'm pretty shy and think too much about everything I do or say so it's difficult to meet new people.
I don't know if I'm making any sense but I think some people could feel offended by that. I don't know...