My son, Gabriel, is 8.5 months old and isn't "traditionally" crawling yet. He pulls himself around with his arms, and basically moves in a circle. If I try to put him onto his knees, he gets pretty upset with me. He definitely gets around, but not on his knees. He doesn't seem to be motivated to get up onto his knees, since he technically does get himself around. Are other people experiencing similar things with their little ones?