Answer:
It's always good to laugh at yourself when you make mistakes. To me, this is a way of letting yourself know that it is okay to not always take yourself too seriously and that you can make mistakes. When you laugh at yourself, you ensure yourself that things will be fine and that things will be better. When you can laugh at yourself then you won't fall to pieces when someone else dares to laugh at you. Laughing at yourself, whether internally or externally, gives you a boost of confidence. That confidence shows when you're around others.