LoL 

I sometimes wear red while wagering, I think red is a symbol of good luck.
I never cross my legs while sitting at the table, in here people say it can bring bad luck.
I have a small charm, i call it a lucky charm, that I keep near the chips or the screen, as if it were a lucky charm...
Sometimes before I spin or place a bet, I knock on the wood in a playful way or give a light tap on the phone screen, as a bit of a ritual.

I know none of this changes the numbers or the odds, but it gives the game a more formal experience, a little joy, a little flavor, and reduces the fear.

Do you have any rituals?