I'm 6'2 225 lbs myself, I went from 180lbs-205 in the marines but I put on a bit more muscle when I got out, so I feel your pain. This is going to sound a bit weird but I do what I called canine deescalation. You turn your body away from the interest at a 90' angle but turn your head toward her. This shows you aren't a threat after the approach, it's instinctual. But once they have relaxed you want to turn your body back toward them, only after interest has been affirmed. At that point you are a…