Play active moves and keep it simple!
In the following game ex-worldchampion Karpov had a slight initiative in a better endgame. Look, how he transformed it into a win with simple and active moves:
Of course, it looks very simple how Karpov transformed his better position into a win. But do not forget, it needs much Endgame Knowledge to be sure that your simple moves are winning moves ... so, study endgames!
