Clint drops his own stance, trying to keep his feet, but he's off balance already in trying to keep the gun away from either of them. It's enough for James to shove him back, but he manages to keep his feet - and to keep moving. He's the most worried about James's gun, right now, and he really doesn't want him to get a bead on either of them, even while he also doesn't really think he has a chance in getting it away from him.