Answer:
The first day at a new job is really exciting, but you will also be feeling nervous. So, what's a good way to approach things?
Firstly, don't be late. Punctuality always gives a good impression, and don't leave the very second your finish time arrives. You will get your manager's attention by being conscientious.
Secondly, get to know the people you work with, listen to other people's ideas and respect their points of view. You want to make a good impression, but don't be afraid to ask questions about anything you feel uncertain about.
Most of all, though, enjoy your day. This is a job you wanted, you worked hard to get here, and you're successfully through the door. Things can only get better!