1. Don't ever let a lover stay the night.
2. Remember to always ask your friends for advice.
3. Compliment your partners on their bodies.
4. Don't mix business with pleasure.
5. Spice things up the in bedroom with some good old-fashioned dirty talk.
6. Don't be afraid to make the first move.
7. There is such a thing as calling too soon.
8. Be prepared for the fallout if things turn sour.
9. Going through a partner's phone is NEVER a good idea.
10. Never think of the morning after as a walk of shame.
11. Make sure you know where you stand with each other.
12. Send your friends in to subtly suss out the other person's feelings.
13. Absolutely NO spooning allowed.
14. Sex isn't everything.
15. Never go to bed angry.
16. Avoid the numbers chat AT ALL COST.
All images courtesy of Universal Pictures.