Centre

First of all, immediately try to gain the center of the board.For white, moves like e4, d4 and Nf3 are good for positional advantage.For black,moves like e5,d5 and Nc6 are good moves. It might sound easy and all,but having a good center contributes to a successful win in chess.And don't forget to protect your king by castling. Hope tis was helpful! ;)