Why do you laugh when you talk to each other?

This question should be based on the intentions expressed by both sides in their speeches:

1 is the reason why both sides are polite.

The speaker wants to attract the attention of the other party, but the other party will misunderstand. When the speaker smiles, he will laugh with him.

It feels good that both sides recognize each other.

Both sides are interested in each other, but they are both shy people.

5. They are all hypocritical people. They are all playing tricks on each other.