Why do a couple want to see my jokes? I don't know them.

It is estimated that you did some actions or manners, which made the bored couple suddenly scream. Maybe not long ago, they had the same experience as you. It is these reasons that will point fingers at your behavior. As a regulator of love. Don't think too much about such things, besides, between strangers. They may not really laugh at you. Maybe it's a quiet topic between two people. The woman is embarrassed and uses you as an excuse. Makes you think they're laughing at you. These things are no big deal. You just laugh it off at any time. I hope I can help you.