A good credit card for me?

Hi im 18 years old, not a student, and looking for a good credit card company for a first timer and would also like one with reward/award points, and lowest apr or interest or whatever, i dont quite understand all the numbers and terms. Basically, I just want a creditcard to buy stuff online, also buy stuff to get award points, and also to slowly build my credit, and obviously pay it back. So what are some choices that suit my needs?