Join the Army

You don't have to make a 20+ year career out of it, but joining the military (army, air force, navy, etc) for a while is a great experience.

You'll meet lots of great people, learn valuable skills - and hell, you can even get a free education from it.
Bonus "man points" if you join when you're 18, get a free education, pension out in 20 years and then get a civilian job in your trade - while still cashing pension checks.  Better yet, retire at 38 if you can do it.

Have an open mind...

You need to have an open mind, but not so open that your common sense falls out.

keep it clean

Keep your "ride" clean -- it doesn't matter if it's shiny & new (unless it looks like you're trying too hard - and the payments are putting you in the poor house), or if it's a clunker with some duct tape patches here and there.

But, keep the thing clean!  There is no need to have fast food wrappers and coffee cups tossed all over the place along with sticky spills here and there.  Keep some premoistened wipes in the car, and clean up if you spill something.  Also use them to wipe down the dash every few days.

If you're going through a drive through or into a fast food place, you have no excuse to not gather up existing garbage and toss it right then  (just don't litter)!

don't kill time

Time is a valuable and precious commodity -- you can't trade it or buy it.  Once it's gone, it's gone.

Use it wisely.  Don't "kill" time -- find ways to be productive in spare time.  And yes, we all need to find ways to unwind - perhaps that's playing a video game (just not for 18 hours in a day), or chilling at a strip club or bar/nightclub.  That's all fine, it's when you're just sitting there doing nothing for no reason.  That's killing time.

ride a bike.. a motorcycle type

ride a motorcycle for at least a season or two.

have an interesting hobby

have interesting & manly hobbies you're active with - and no, knitting is not one of them.

take out the trash

take out garbage - don't let it pile it up and over flow for others to clean up.