- Take a sip every time there's a Shout-Out to something geeky. Make it a shot if it's an anime reference. Two shots if it's a sci-fi novel.
- Three shots if it makes no sense. EG, Slytherins referencing Death Note.
- Take a shot every time a scientific study is cited in the narration. Make it two if it's cited in actual dialogue, or is EY's own. Take three if both.
- Take a shot every time Harry snaps his fingers. If a character other than Harry snaps their fingers, make it two.
- Take a shot every time Harry acts bratty or condescending.
- Take a shot every time someone doesn't understand Harry.
- Take a shot every time Harry thinks about/comments on the wizarding world being stupid. Make it two if Quidditch is mentioned in this context.
- Take a shot every time Quirrell says something or someone is stupid.
- Take a shot every time Quirrell does (or is mentioned to have done) something absurdly awesome.
- Take a shot every time Hermione is jealous of Harry.
- Someone thinking in story terms:
- One shot if it's Dumbledore.
- Two shots if it's Harry.
- Three shots if it's a female character who Thinks Like a Romance Novel.
- Four shots if it's none of the above.
- Two shots if a Diabolus ex Machina happens
- Two shots every time someone is mean to Hermione for a stupid reason.
- Two shots if a significant event happens during the storyline, but off-screen (for example, the Sorting Hat's Parseltongue message).
- Take a shot when Harry goes into his 'Dark Side'.
- Sip along to Harry's house personalities discussing a situation.
Drinking Game / Harry Potter and the Methods of Rationality