My son is gifted and I encourage him to brag in the comfort of his home and not in public. The problem with this is an 8 year old no matter how gifted does not understand how to "act" average. So simply talking could hurt an average person's feelings. I hope with age and my help he learns to understand that while he should be proud he does not need to boast. No matter how gifted a person is we all have faults. As for us average people, we are just as good but in different ways. Many great people have been "mediocre". When it comes down to it though, we all brag about something in life. I brag about my children all the time, I'm a proud mommy! Others boast about their career, cars, religion, homes, college they attended, and so on. It's human nature to express things that make you feel good.