1. Drink every time you see Ted’s kids and every time older Ted’s narrator voice (Bob Saget) directly addresses them.

2. If Barney has sex, take one big sip.

If Robin has sex, take two big sips.

If Marshall and Lily have sex, finish your drink. If Marshall and Lily have sex in a particularly memorable way, consume one whole drink.

If Ted has sex, do a shot.

3. Every time there’s a flashback, you should throw a whole drink back.

4. Drink each time you see Robin on screen as a newscaster. If you see Robin on screen as Robin Sparkles, drink twice as much.

5. Any time there is a reference to suits (including tuxedos and the phrase “suit up!”) drink something Barney would approve of (aka scotch/whiskey).

6. Each time Canada is mentioned on the show, chug an entire beer because Canadians love beer. (Brownie points if whatever you’re drinking is actually Canadian.)

7. Drink when someone says, “wait for it” in the middle of a word and when “bro” is used/incorporated into a word.

8. Whenever Robin pulls out a gun, you should go ahead and shotgun.

9. Drink twice whenever you see The Mother or any hint of her (her apartment, the yellow umbrella, her ankle, etc.)

 

Bonus rule: If you’re looking to get hammered, or if your tolerance is so high that the above rules just don’t cut it: drink every time one of the characters is drinking or is seen with alcohol.

Enjoy.