How can a handler determine if a dog is friendly?

Determining if a dog is friendly can often be assessed through body language, particularly the position of its tail and ears. A dog that is friendly typically displays a relaxed and neutral posture with its tail held high and wagging loosely, while its ears may be in a natural position or slightly forward. This conveys a sense of openness and lack of threat. Conversely, a stiff tail or lowered ears might suggest anxiety or aggression. Understanding these signals is crucial for a handler, as it helps in safely interacting with or approaching an unfamiliar dog.

The other options do not provide as reliable an assessment of friendliness. While a collar and leash may indicate ownership, they do not necessarily reflect a dog’s temperament. Checking for signs of aggression focuses on negative traits rather than friendly behavior. Lastly, waiting for a dog to approach can be useful but does not guarantee that the dog is friendly, as some dogs may remain reserved regardless of their temperament. Observational cues like tail and ear positioning are much more definitive indicators of a dog's friendliness.