For beautiful eyes,look for the good in others; for beautiful lips, speak only words of kindness; and for poise, walk with the knowledge that you are never alone.
-Audrey Hepburn-
I think this quote is quite impressive and also really true by my experience.There are also the same kind of expression in Japan . So the beauty is not just about appearances but also about what is truly inside in a person and their personality. Other than appearance, words can reflect someone's kindness and the way you express yourself will impact other people's opinion about you in a good or bad way depending on the words you choose.
Some times you may get mad at your friends or your family. At such a time as this, you should speak nicely to them then you feel much better :)