[Handsome Guys] What are some signs a handsome guy gives if he is seriously into you ?

When I say handsome, it's not just a guy who likes himself, I'm talking about the ones who can easily get girls, stares, smiles, the type that a lot of girls flirt with.

So men, or anyone in general, what are some signs that a handsome or extremely handsome guy is actually into a girl… but in a serious way?

When answering please tell me if you/he is shy, introvert, extrovert, outgoing, etc...