I do not want to hook up - I am happily married, but when I see pictures of a nice looking woman, who can be of any age, I like to send a PM to compliment her. I always hope my comment will bring a warm glow or boost confidence.
I seldom get a reply though. I know women on this site are bombarded with PMs as ladies are few in number and straight men in great numbers and that this might make it a full-time job answering PMs.
I have tried all sort of messages. The ones I prefer are favourable comments about how attractive a woman is or how nice her figure, breasts or whatever is. I have tried more suggestive comments and also those telling her what I would like to do. Nothing works though - at least not very often.