I would argue that girls shouldn't apply lots of make-up just to please the people around them.

I personally like an honest person, who doesn't suck up to everyone simply to impress them...I would rather have an honest and solid Amazon as a girlfriend than someone who feel like she has to make pretensions and put on shows in order to stand out...

The point is this:

Beauty isn't just material, it's what's on the inside of you that will make you truly shine.

If you think you're ugly and fat, you'll probably do a good job in convincing other people of that opinion. If you act and feel truly beautiful, then people are going to notice, and appreciate you for who you are, not just for what you look like.