Simple things you should do...

Compliment three people each day.

Overtip breakfast waitresses.

Look people in the eye.

Say "thank you" a lot.
Say "please" a lot.

Make new friends

Have good posture.

Don't gossip.

Don't spread yourself too thin.

Don't expect life to be fair.

Be bold and courageous.

Don't procrastinate.

Get your priorities straight.

Call your mother and father.