Tell her to do whatever you want. If her video meets your expectations, you won't go wrong with a short compliment (ie. nice, sexy, damn). One word answers are effective because it gives her just enough to stroke her ego, and not overboard where she thinks she's your only option.
Reporter: What keeps you awake at night?
General James "Mad Dog" Mattis: Nothing, I keep other people awake at night.
OKC Data Sheet