The essentials: Commitment - as the show airs 3 nights a week & a favorite cast member for the season to root for.
Before the episode: If an HoH or Have/Have not challenge will be played, pick a player to win. If it's an eviction episode, pick who will be voted out.
Drink x1 if:
Anyone says "who wants to see my HoH room"
Anyone says "backdoor"
Anyone says "showmance"
Someone eats slop
Someone drinks
Two or more house guests cuddle
If a house guest uses the pool (why is this so rare?)
Julie Chen says "house gusests"
A nickname is used
Someone is shown sleeping in the Have not room
Drink x2 when:
Someone is seen listening to the headphones in the HoH room
A house guest smokes
Zing Bot makes a joke
Someone sabotages something in the house
House guests talk bad about each other in the confessional
Drink x3 when:
You incorrectly picked the winner of the HoH or Have/Have not challenge
Anyone curses (the fish tank is usually displayed)
House guests hookup with each other in the HoH room
A house guest has to dress up in a costume
OTEV speaks during a challenge
A Big Brother legend makes an appearance (example: Dr. Will, Mike Boogey, Rachel Reilly, Evel Dick
Take a shot if:
A house guests picture fades to grey following eviction (drink in their honor)
Someone uses a curse word that isn't caught by the audio engineers
Give a shot if:
You correctly picked the winner of the HoH competition
You correctly picked the winner of the Have/Have not competition