Respectful of all, but selective. There are different levels of "liking" and where someone falls on this scale, is one's own business. I would prefer to be liked by people who love me,(not always possible) than to be liked by someone whose existence has no meaning to me. Quite frankly though, the only person who's opinion really matters on how likable I am, is me. So, having said that; 'I' really like people who feel the same.