J.W.
It is hard to picture....I would video it, just for fun / posterity, as suggested. I don't know that your question is necessarily about crawling but use of her hands??? My 4th child used to turn his hands backwards(palms out/up): when holding the breast, when pushing up, when beginning to crawl, etc.... it concerned me a little, I'd constantly turn them around, he'd flip them back. As he developed he used his hands well - he'd three and full of skills! Now, I have a 5th child, she turns one hand in like he did - weird. I am not at all concerned because I've seen it now, but we sometimes can't help turning her hand over - THE RIGHT WAY!! :D They all have their little quirks, perfectly normal for them, just odd to us - enjoy!