Summarize:

No one expects you to immediately understand all the elements of a new job right away, but they may be too busy to realize that you need help.  Don’t be embarrassed to ask someone to explain something to you; not only does it demonstrate that you care about the work you are doing, but it might even make the person you ask like you more.  It’s better to ask for help than to do something the wrong way.  Save you and your coworkers time by asking for clarification and doing things right the first time. Benjamin Franklin famously won over people that didn’t like him by asking for favors.  Asking for a favor can pacify someone that sees you as a rival and make them see you in a more positive light. You may find yourself without much to do on your first day at work.  After filling out human resources documents and completing orientation there may be time leftover that your supervisor or manager hasn’t accounted for.  Don’t let that time, or any time in your new job, go to waste.  Volunteer to help others with things so you can learn about the job and get to know your coworkers. Be proactive and complete tasks you know you will be asked to complete later. Be comfortable with the idea of doing things that might make you uncomfortable.  Doing new things is the only way to get good at them. Demonstrating an understanding of what the company does and how it works on your first day shows that you are well prepared and care about the job.  Research the company you will be working for and read about their operations and policies on their website if you can.  Look for the company in the news to see if there are any developing or recent stories that involve the company. Peruse press releases the company posts on its website. Shining a spotlight on the help others have provided or the hard work they’ve done goes far to demonstrate your confidence and that you are a team player.  If someone goes out of their way to assist you, mention it to the group or your supervisor in conversation.  Pointing out the achievements of others may strengthen your relationship with them. Demonstrating that you are willing to share the spotlight shows your employers and coworkers that you aren’t selfish. Now that you have established yourself as a valuable new member of your team, it's up to you to live up to the expectations that you've set for yourself.  Keep up your good habits to establish a long lasting impression as a team player and asset to the organization.  Be a hard worker, but be modest about your successes and achievements. Demonstrate a willingness to help others and be a part of the team. Be honest about mistakes and upbeat about every situation. Be ambitious and action oriented; don't be afraid to try new things.
Ask for help. Take initiative. Know the company. Share the spotlight. Develop your first impression into a lasting impression.