How many thoughts will be elicited in his mind by this short sentence.The excitement dissipated immediately, and he thought, he imagined, he calculated, he felt anxious.Observe what conclusions he privately draws from his own observations.If you don't think as carefully as I think, maybe his thinking will lead to another direction.He probably felt himself the most important person in the world, since he saw so many people working to prepare his lunch.If you find that his thoughts are likely to become like this, you can easily prevent it, and at any rate quickly erase the false impression.