You are always trying to understand it in context, even if, as far as you are concerned, at that point in time, it has not necessarily anything to do with you, you still want to know why those people are laughing.
Estamos sempre a tentar entendê-lo no contexto. Mesmo que, naquele momento, ele não tenha nada a ver connosco, queremos saber porque é que aquelas pessoas estão a rir.