If you are entering a social situation and you want the setting or conversation to follow a certain vibe then try 'being' that vibe. If you enter a social situation with a negative preconception of how the interaction will go, it will more than likely end up becoming a reflection of your perceptions. If you instead, engage the situation with a focussed and positive outlook, making a focussed effort to exude only positive energies it is impressive how easily people will unconsciously pick up on these energies and follow suit.

-Kid Horse, via /r/psychonaut

I also highly suggest everyone who wants to build their inner game to read Prometheus Rising by Robert Anton Wilson.

Inner game is what you feel on the inside while you are doing the things you do on the outside.