1) they see a girl and she doesn't give him any attention.
To him that's an attractive quality. Would a guy chase a girl he is not attractive too
What makes a guy chase a girl
How long would he chase (sex wise and relationship)
Would a guy like a girl who he has never spoken to? Would he make signs and never approach? How long would that go on for?
Most Helpful Guy
Women tend to like men for what they see reflected about themselves in that guy. If that guy likes her personality, her look, her sense of humor, etc. then women (who are on some level attracted to that man, at least) will generally pursue that person because they make them feel good about themselves and those qualities. Guys do not usually care about that, so much. If we like a girl's personality, her look, her sense of humor, etc. then we like her regardless of what she thinks about us, because it's not the way she makes us feel about ourselves that we like, but simply how we feel about her. Obviously if she denies him, he has to either get over it and move on, Become a creepy stalker-type guy fawning from a distance, or as many misogynistic men do, decide she is a "bitch" or something after she rejects him and decide he didn't like her in the first place.
These things are definitely not always the case for either men or women as many people break traditional gender norms or have different values in partners, etc. But these tend to be the cases.1