Use chopsticks to balance the shot glass over the beer glass (optional).
Drop the shot glass into the beer glass and quickly drink the mixture as you would a shot.
Notes
Sake enthusiasts would recommend drinking the sake separately from the beer. Choose your own adventure.
For the best taste, chill your beer and sake in advance of making this recipe. You can also chill the glasses in the freezer for 30 minutes to an hour if you like.