Guys, Why do you do this?

There is this guy that I still like and he is looking at me from afar. He never looks at me if I'm nearby. I'm too nervous to talk to him again. We talked years ago and I couldn't hold a conversation 😩. I'm afraid of doing that again and I thought he kind of disliked me for other reasons. He has been acting strange lately too. What should I do?
Guys, Why do you do this?
Post Opinion