Speaking, Make suggestions.

NIL: What's the matter, Paula?

PAULA: I think we're lost. I can't find the museum on the map.

NIL: Oh, great! What are we going to do?

PAULA:  Why don't we find a taxi?

NIL: I'm not sure about that.

PAULA: Well, let's ask someone.

NIL: That's a good idea! Excuse me!