What is the buddhist way of responding to compliments?

"Hey David you're a genius!" "Hey David you look so fine!" I think blushing and feeling a little nervous isn't really buddhist... But sometimes if you don't react this way you might look as if youre being rude What exactly do the scriptures say of how one should respond in these situations? I've seen quotes about the Buddha saying the brahmin is "indifferent to compliments and indifferent to criticism". I'd like to know what the scriptures say about its possible harms, etc. I think it is an interesting question that deserves some thought as it is part of our lives.