I'm just curious. When I meet cats, I slow blink at them (a sign of trust that, as a side-effect, tells them I'm not threatening), and I noticed that I automatically do the same with dogs, which probably doesn't make any sense to them. So, is there a way to tell a dog I'm not threatening/am approachable/can be trusted? Wagging a tail is out of the question ^_^
EDIT: Seems like I worded the question wrong. It's not about actively approaching a dog. What I meant is, is there a way to let the dog know that it can approach me if it wants to? What I'm interested in is the casual show of intent, certainly not the action.