A young woman in tight pants talks to a man in the street.
A young gal in snug pants chats with a guy in the road.
Gal is an informal term for woman; snug is another word for tight; to chat with someone is to talk to them; guy is an informal term for man; road and street are synonymous.
A woman could be called a gal and as she talks she chats.
They are snug pants because they are tight pants.