It's rude to voice negative assumptions about a person.
Dave and Kim are in the cafeteria discussing the new employees that just arrived when Kim asks Dave if he has any thoughts about them.
Dave wants to respond to Kim's question.
Dave tells Kim that it's too early to say anything since they haven't had a chance to get to know anyone.
Dave tells Kim that too many of them look like they're probably stupid and lazy based on just how they look.
Kim thinks Dave is a smart guy and is happy to have such a wise and fair friend.
Kim thinks Dave is a lowlife and starts to feel bad for even hanging out with him.