The tip for keeping your hand in the middle of the handlebars is a great tip. You can look around once you figure how to keep your weight balanced later by having your hands out wide, but here is the concept. If you have your hands out wide, when you look to the right you tend to weight your right side, thus putting your weight to the right side handlebar and swerving to the right. The whole concept is this. Keep your elbows bent really well so that your are taking the weight in your core, you are not resting all your weight on the handlebar. When you rest your weight there, the bike moves with your weight. If you are holding yourself with your core and not resting so much weight on the handlebars, your core keeps you straight. So, relaxed on the handlebars, elbows bent, hold yourself up by your core, keep your hands in middle of bar, then keeping your weight centered over the seat and middle of bike, look to the right and the left.