Tips for a Successful First Day on the Job?

Dear Experts, I graduated from college a couple weeks ago and I'm eager to take my first step into the real world. I was able to land a job that begins right away. My first day is next Monday. Do you have any tips for making a great impression on the first day? Our Twitter Advice Project (T.A.P.) is no longer an active campaign. To find an answer to the above question, please use the "Search" box in the right-hand column of this website.