The brain wants to have fun. If you keep thinking about that every day, you’re always going to be interesting and relevant. The brain hates boring and expected. -Linus Karlsson & Paul Malmstrom/ Mother New York-
A lack of embarrassment isn't actually a desirable aim in social situations: to act completely without shame means that you're either not aware of the social rules that bind that group together, or don't care about them.
7 Habits for Projecting Confidence Instead of Arrogance