It could mean he is interested in her or finds her attractive. It could also mean he is simply paying attention to the conversation.
it means he's interested in you, or her.
he is interested in you at the very least(problay more than interested).
It means he is interested and are you interested in him male dating ritual
It would probably mean that she is interested or, most likely, not interested. If it's playful, then she's probably interested.
He means he likes u .
It means that he is interested in her.
It means you are memorable & he is interested.
It means that he's not interested in you
no
The guy is clearly interested.
Maybe, maybe not. He may just be thinking. Looking your way doesn't mean he is interested.