I have found approaching from behind, hand on forehead to hold the face still - then quick wipe, try to do it so you don't have the mouth or nose fully covered by the facewasher, which requires holding the facewasher around your fingers and not across your palm, if that makes sense. Sometimes I would use a container, put a bit of warm water and a squirt of bath lotion in it (so that it smells the same as bathtime) and let her splash in it a bit - good for when the hands are really mucky.