I read something the other day on this which I found very interesting. It was making the point that if you always say smart, intelligent and never say beautiful or pretty etc it can reinforce the myth that you are either smart or beautiful/pretty but not both. So like everything is about balance, don't always focus on intelligence or beauty try to comment on both. As a kid I thought I was really ugly, people always commenting on intelligence, but I had no issues with lack of self-esteem about my intelligence but I did about my appearance, I was not ugly at all just average - but I never saw that prob till I went to uni. Whether we like it or not in this world appearance does matter and is important I think to have believe/value your self in all aspects.