He laughed nervously, trying to make a joke of it.
"Ask a simple question" he said, and they laughed nervously.
She laughed nervously, and looked back over her shoulder again.
"Here I am, working days," she he said, looking around and laughing nervously.
He laughed nervously and went back to watching the game.
Then somebody laughed nervously, and immediately everybody began to laugh.
She laughed nervously and said, "You don't know me very well yet."
Some of the others looked at him and laughed nervously.
He laughed nervously and then looked back at the floor.
Maybe we'd better go see,' we both said, right together, then laughed nervously.