Drink Once When:

• Carrie says: "I couldn't help but wonder..."
• Any of the four leads changes outfits.
• Miranda rolls her eyes
• Charlotte talks about babies
• Samantha gets busy with anyone
• The girls go shopping
• Carrie squeals like a stuck pig

Drink twice when:

• Someone slams anywhere outside the city...
• Mr. Big phones in from the golf course, hot tub, or a vineyard
• A fashion designer is mentioned.

Drink Three times when:

• Anyone on the show takes a drink
• Somthing nice is said about a man the girls once dated

Men Drink when:

• Samantha mentions her oral fixations
• One of the girls gets her heart broken
• Of the leads shows a breast

Women drink when:

• One of the girls gets lucky
• a certain Male body part is the topic of conversation
• A guy picks up a check

Everyone downs a shot when:

• Anyone except Carrie is seen working.