5个迹象告诉你是否某人对你有意思

He might pay you extra attention in the pub and laugh at your jokes but how do you know if he's really interested in you?

他可能在酒吧对你格外留心，并会对你讲的笑话做出回应，但是怎样才能摸清楚他是否真的对你感兴趣呢？