Play/drink responsibly. If that means using water, use water.

The Rules of the How I Met Your Mother Drinking Game

Barney, Lily, Marshall, Robin and Ted playing drinking games at MacLaren's Bar
Another bottle of Glen McKenna? Why not.

It's best to play the HIMYM drinking game early in the night, because as you know, nothing good happens after 2am. Before we start the game however, take a drink if your name is Swarley or Swarles Barkley. Also take a drink if you thought Ted should have ended up with Victoria, the girl who very well could have been the mother had the show been cancelled. And lastly, take a drink if you think playing a drinking game belongs on the Murtagh List.

"Riggggggs, I'm too old for this stuff!"

Take One Drinks

Take Two Drinks

Take Three Drinks

Take Four Drinks

Finish Your Drink

Waterfall

Conduct a waterfall for as long as The Proclaimers, "I'm Gonna Be (500 Miles)" is playing, even if that means stopping and starting with them.