he likes her. come a guy wouldn't be playing with a girls hair or anythign like that if there was no connection
"wow this hair is so long, haha I can twirl it around my fingers, it's pretty too, yeah she's letting me do it!"
Anon pretty much said it.
If the hair is pretty or tempting enough, we're going to play with it, out of sheer curiosity.
He is saying, I like you, do you like me?