I would rather have a friend who has a high self-esteem so in that way when I hang out with them, I'll feel pretty confident of myself too. As they say, you are who you hang out with. If I were to be with someone who didn't feel confident, that kind of energy will rub off on me and let's just say I would be insecure. But that aside, If I had a friend who has low-self esteem, i would do my best to help them and cheer them up.