Rituals are important, very important, when -you- are the main actor. If -you- are going to perform as a player, actor, speaker, soldier, etc whatever your ocupation, you NEED a ritual to prepare for action.
I go over my task inmy mind ahead of time, alone, by myself, in silence, preferably in low light. My performances become a confrmation of the way I saw it in my mind before (Sun Tzu's advice)
It gives you focus, concentration, and attention to detail. High intensity athletes (including some boxers) have very famous rituals.
As a spectator, it might be important to have a ritual, not for luck, because I do not believe in it. But to become a better analyst of game strategy and tactics everytime. An informed and inteligent fan is a better fan in my book. That is why I am a member of this site. I enjoy the insight.
Daniel Snyder has defined incompetence, failure and greed to true Washington Redskins fans for over a decade and a half. Stay away from football operations !!!