People are telling me to take advantage of the people I am meeting. But I do not want to seem too pushy. How do you make an impression? What is the best way to say in contact?
The main focus on your internship should be getting to know the company since you're being evaluated for a full time position. Since the company is made of people who work there, you should start with your mentor and don't be afraid to be pushy to him. They expect you to bug them with any kind of questions, so you could ask them who should you talk to about <thinng-you-are-interessted-in>. Meeting random people might be eventually useful, but if you want to make a professional network you should focus on your interests.