If you see or know your friend is upset and their crying, approach them. They secretly want someone to come after them. Even if they say they don’t want to talk about just sit there and keep them company. It’s always nice to feel like somebody cares, not just that “I’m here if you need me” crap. Be there for them right then and there because let’s be honest, saying “I’m here if you need me” doesn’t mean shit these days.