Dress neatly, professionally, and appropriately for your job.
Always arrive on time or early.
Don't gossip with your co-workers.
Be polite and respectful to your boss.
Do your work without complaint and offer to help out in any way you can.
Be on time
Meet your deadlines
Avoid conflict with your co-workers.
Offer to work overtime should the occassion arise...
Do a good job, and make sure your boss knows it.How do I tell my boss I am quitting?
why do you need to impress anyone?