Ohhhh that’s a good one, hm…
I think the best way for me is with a personal, hands-on element- running a paw across a cheek that blooms with fur, bidding hips wider, love handles into being- reshaping someone while cooing each element, recounting each thing to change next, until they’re exactly what they want to be- sure, snapping your fingers and making someone something new is fun, but whether magic or mad science, I think it’s best when you’re there for them the whole way~