Don't Look at the Hand
Our first dog was a border collie. Border collies are canine Einsteins. She usually knew what I was going to do before I did. All I had to do was think about going for a walk and she’d jump up from where she was studying calculus or quantum physics or something, and grab her leash. But she was slow to learn that fingers pointed at things. To be fair, hands often contain treats or toys, so it pays to keep an eye on them.