Buy a lottery ticket. (Obvious action)
Get into the feeling of having already won it.
Write down what you'd spend your winnings on.
Give gratitude.
Don't doubt, worry or second guess.
Script it. Visualize it. Visualize telling people (friends and family) that you've won.
Script as much detail as possible.
Give a little money to someone (a charity, a homeless person) because what you give out comes back to you.