1. Something people say to talk to you but don't have anything to say.
2. A word as if you written " Hello world. " there would be 2 words.
3. Something you could type to be silly.
4. Word
Person 1: Hey, person 2! Did you do the homework for today?
Person 3: Yeah, I think it was a piece of cake, how did you do Person 2?
Person 2: word