If you're a beginner, I very highly recommend your first move being 1. e4 (moving your kings pawn two spaces). This helps take control of the center, and it frees your queen and king's bishop. I would also recommend experimenting with 1. d4. This also takes control of the center, and your pawn is already protected. From personal experience, opening with e4 tends to lead to more tactical, open games, while d4 (depending on how black replies) tends to lead to more cluttered, positional games. With black, just learn the replies. The simplest is to counter e4 with e5, and d4 with d5, but there are many ways to do it.
What you should remember is that NORMALLY the pieces you want to use first are: the pawns in front of your king and queen, the knights, and the bishop next to your king. Castling generally takes place shortly after that occurs.
Hope that helps.
What are the best three openings for white?
What are the best three openings for black?
Why are they the best, what do they do?