Politeness Scale (Point System)

least polite
1 point -- words or phrases but no verb (A glass of water)
2 points -- command (Give me a glass of water)
4 points -- statement (I want a glass of water)
6 points -- question (Do you have water?)
most polite

bonus points
 +1 -- use a modal
 +2 -- use a past tense form of modal
 +1 -- say please
 +1 -- introduce the request with an apology ("excuse me," "pardon me")

penalty points
 –2 -- profanity