1. Never ask a woman if she wants to have sex by asking her if she wants to have sex.
2. It is more important to have good health insurance than good health.
3. Don't bluff more than once in a poker game with friends.
4. When one of the big bosses at work unexpectedly says something really cheery and friendly to you, he means absolutely nothing by it. Not even if he's your father.
5. Wear as much black as you can. It makes you look slimmer and cooler. But avoid black jeans.
6. When someone in your family is going through a divorce, always side with the blood relative.
7. Pointedly praising something unusual a person owns or has done will make you appear far smarter in his eyes than a 10-minute discourse on world events.
8. Yes, speak softly and carry a big stick. But don't mumble. And don't swing the stick.
9. The man who can't dance, can't converse, and can't provide psychological support to a woman is only half a man; the other half can't cook, can't clean, and badly wants a drink.
10. Do not get a visible tattoo larger than your penis
11. Be aware that most people are operating on a very condensed version of the 10 Commandments: the part about murder.
12. There will be times when good neighbors are more important than a good neighborhood.
13. Telling a woman, "You're a great person," is taken as the lead-in to a confession that you don't love her.
14. Trying to "teach someone a lesson" never works.
15. Easy on the mayo!
16. Be careful about publicly discussing your hobbies, as most hobbies strike people as somewhat pathetic: most notably, collecting stamps, coins, or anything else, bird-watching, bowling, rockhounding, spelunking, table tennis, poetry, dog shows, chat rooms, polka music, yoga, herpetology, marathon running, and religion. The only hobbies you can safely own up to when among people you need to impress are fly-fishing and golf.
17. Never buy anyone a gift at a kiosk.
18. Never wear clothing that your coworkers avoid—the bow tie, the suspenders, the green suit. While you might think you're expressing your individuality, your colleagues will perceive it as a rejection of their group culture; you'll become a person who probably can't be trusted.
19. Do not bring lunch to work.
20. Rainbows are God's way of reminding us that beauty is an optical illusion, except in sports cars.
21. You will never become a rock star.
22. As you go through life, you will discover that more and more of the subjects you studied in college are useless, with the exception of abnormal psychology.
23. Never make any sort of generalization concerning gender, even if it's so true God himself would back you up.
24. Telling a person in management, "I'm a bit of a philosopher," means you're a total loser.
25. When running in the park on a hot day, do not take off your shirt if you are a really hairy sonofabitch.
26. Never hesitate to admit the error of your ways, when under oath in federal court.
27. Always wear freshly laundered or pressed clothing to work. Even one wrinkle will have certain coworkers creating—and perhaps sharing—scenarios of debauchery or financial distress.
28. Do not say hi to a perfect stranger in any town with a population over 2,000. The friendly gesture in Beaver Dam Falls is a scary act of aggression in Boston.
29. Always imply, in every possible way, that the person you're talking to is smarter, better-looking, slimmer, and more successful than they really are.
30. When choosing a bottle of wine to bring to a dinner party, spend between 10 and 15 dollars. That's for a bottle, not a gallon.
31. Do not come on to the new female pastor, unless she winks at you during the sermon.
32. An ounce of appearance is worth a pound of substance.
33. The way a woman looks, acts, and talks says nothing about how good she is in bed.
34. It is okay to admit in conversation that your accountant used his imagination to save you $500 in taxes, but never admit you saved 5 bucks by refilling the vodka bottle in the minibar with water.
35. Never get into a pissing match via e-mail. If he forwards, you lose.
36. Never suggest to another person at the gym that he's not working hard enough to accomplish anything.
37. People who live in glass houses are idiots.
38. Going insane while watching a great football game is a sign of mental health.
39. When a man meets another man, bonding begins when they both say things they hope no one else hears.
40. The person who sincerely says to you, "I want to get to know you better," is a person you don't want to know at all.
I found this from men's health thought it would be a good read for you all.