6. Be Active with Women

Put yourself out there, man! Interacting with the opposite sex is like any other skill—you have to practice, and make a few mistakes along the way, before you become a master. Be willing to talk, and actively listen, to them, and go where they are without fear. In your early to mid twenties, you have an unprecedented opportunity to play the field with minimal consequences, but the girls are not going to come to you.

Sleep around, but do so responsibly, and be a considerate bedmate. Chances are, any young lady who trips into your bed easily knows it’s not a serious attachment. She’s there for the same reason you are—but be a gentleman, make her feel special and desired, and you’ll both part on great terms.

Plus, girls talk to each other about guys. Don’t be a jerk—take her safety and fun seriously too—and she’ll likely speak highly of you to her friends. That means more dates for you.

Also, you should shy away from committing yourself to the first girl you meet. Falling in love is great, and it happens to most guys around your age, but considering marriage before age 25 is unadvisable. You aren’t economically, intellectually or emotionally ready for the challenges marriage can present. You’re young, so enjoy it and keep things noncommittal for as long as you can.

7. Save Your Money and Spend It Wisely

Don’t be ashamed to shop the sales and save money wherever you can. It cannot be said enough—invest for your future. If your company offers a 401k plan, especially if they offer a matching percentage, enroll immediately. The sooner you start, the easier it is to retire comfortably.

It may seem quite distant at age 20, but life happens and time flies. Start now, so you can do it without even thinking about it later. You won’t be sorry; you’ll be rich.

This ties into other related advice. Money can often equate to happiness in the sense that if you earn and save it wisely, it will be there to enable you to live the sort of life you want and care for those you love later on in life.