Keep your body (upper body) 90 degree of the ground line (what do you call this? Perpendicular?). Natural tendency is to "lean backward" so the body stays perpendicular to the "horizen", not the downhill surface. Try to keep your body perpendicular to the "ground surface" not "horizen". Of course, you don't want to do that if the hill is too steep...
Kim, say, here's aa question for you. In the city of Auckland, which ones do you think we have more; uphills or downhills?
HRE, you (we?) are just getting too old to act like a kangaroo...