ScareyH22A has got it. Classic XC technique for climbing. Learning to ride the nose of the saddle can be a little disconcerting, but after you get used to it, the benefits outweigh the nasty "I'm being violated" feeling. Also learn how to pick a line up the hill. Often, a straight line is worst [AMHIK], so take a look at what's in front of you and keep an eye out for the easy line, even if it twists and turns a little.