Olaf: I can't feel my legs! I can't feel my legs!
Kristoff: Those are my legs.
Olaf: Winter's a good time to stay in and cuddle, but put me in summer and I'll be a...[looks at puddle, then jumps over it] happy snowman!
Olaf: Hi, everyone. I'm Olaf and I like warm hugs!
[Olaf the snowman is singing about what he'll do in the summer.]
Kristoff: I'm gonna tell him.
Anna: Don't you dare.
Olaf: Let's go kiss Hans. Who is this Hans?
Kristoff: I'm guessing you don't have much experience with heat.
Olaf: Nope!
Hans: Can I say something crazy? Will you marry me?
Anna: Can I say something even crazier? Yes!
Answer: It's a joke. He asks who the funny looking donkey is, meaning Kristoff. Everyone assumes he's talking about Sven.