Here are 20 ways to impress your boss:

1. Carry a briefcase: It will look as you are hard working, even if it only contains your lunch.
2. Have a straight back: A good body posture gives off a confident look.
3. Be on time: not too early or too late, just right on time.
4. Keep your private life away from work: Drop long phone calls with your girlfriend.
5. Be happy: The more happy you are the harder it will be to fire you.
6. Look good, smell good: It is easy to judge people on first appearance.
7. Keep your workplace tidy: It shows you are well organized.
8. Know what you are talking about: Keep up to date on the current news and what is going on with the company you are working at.
9. Gesticulate: It will make you look less stiff
10. Have a joke ready: You don’t want to be the office clown, but show some humor once in a while.
11. Keep away from gossip.
12. Learn when to keep your mouth shut.
13. Nobody likes a show off: Don’t brag too much about yourself.
14. Make your boss notice you are a work iron.
15. Never date an office colleague. If you have to break this rule; choose a temporarily employed, or someone in another department.
16. Keep cool, even how much is going on around you.
17. Be cautious when you are surfing the web during work hours, stay away from shady websites.
18. Be kind to your colleagues, remember birthdays.
19. Be a leader; take initiative organize social events.
20. Respect the office rules, like cleaning the coffee machine.