When a person asks me a pointed question and the answer is so obvious I laugh. It's like the hit the nail on the head. Other times when some-one else is sharing their own experiences and I can totally relate to the similarity then I can laugh. Not because anything is funny but more because I understand it. Once I laughed when a person had shared an experience that wasnt funny but relatable. She told me that it wasnt funny and I said that I knew it wasnt funny I just understood where she was coming from. Since then I try to temper my response and am on the front foot explaining my reaction.