With the slow caution of someone testing something they suspect is going to be unpleasant, Angeal backs up a couple of steps. Not enough to be crippling, but enough that the feeling of malaise returns.

And then a bit more shuffling to find out where, exactly, is tolerable without being in direct contact. "I'm not sure that's actually going to be effective, but aliens don't necessarily see things the way we do." The Admiral was, distinctly, alien.