While there are certainly some gay men who want literally nothing but sex, many want some kind of connection, at least to verify that the other person is minima

While there are certainly some gay men who want literally nothing but sex, many want some kind of connection, at least to verify that the other person is minimally sane and practices good hygiene. It's really not so different. The "wooing" process for casual sex generally involves little more than giving signals that you're a normal person, and not a weirdo, creep, or bore.