This is making it too easy, holding your hand. The whole point is to be aware and cautious, do you risk walking or wait for them to move? its all suspense. But I guess that is only nice the first time, not the 50th time.

If you tap a opposite direction (behind you) you wont walk you just turn, so from this depending on the speed of the turn you will know if you are walking or not, they wont aggro on this.