Things Men Would Understand Instantly, but Women Would Not

Men have their own language. It can be certain words, jokes, or even a simple head nod. Still, it seems universally understood by other men, not by women.
1. How Are Your Pockets
2. Hey, Look What I Found
3. The Nod
4. It's Clean; I Smelled It
5. Joke Flirting
6. Dress Left or Right
7. Where Do You Want To Eat?
8. Saving Face
9. It's That Thing, You Know
10. The Number of Available Urinals Is (N+1)/2. Let N = Number of Urinals.
10 Things Men Would Understand Instantly, but Women Would Not