Remove nose tapping with another dog ... dog does when it encounters this behavior with other dogs that do not recognize the widespread mutual-another dog that is friendly or not.
Took a nose touch with other dogs ... dogs do when this behavior. Encounters with other dogs is unknown. Probing that the mutual Another dog friendly or not.
Nose on the other dogs... This behavior the dog will do when. Meet with another dog that was unknown. A probe to each other. Another dog friendly or not.