Living with a reactive dog makes you a manager of encounters, and a big part of that job is reading the other dog. The calmer you can predict how an approaching dog will behave, the better the decisions you can make for your own. This skill sits alongside the rest of the reactive dog playbook, and it pairs directly with handling leash reactivity toward dogs.
Relaxed bodies are curvy
A friendly, comfortable dog tends to be loose and wiggly. Their body curves, their tail wags in a soft sweep at mid height, their mouth is open and relaxed, and their movements are bouncy rather than stiff. A dog like this, approaching politely in an arc rather than straight on, is usually a safer bet.
Warning signs to respect
Tension shows up in the body before anything happens. Watch for:
- A stiff, frozen posture or a hard forward stare
- A high, rigid tail or a tail held tight and low
- Direct, frontal approaches aimed straight at your dog
- Raised hackles combined with stillness
- A closed mouth after being relaxed
Any of these is a reason to add distance and move on. You are not being rude. You are protecting your dog from an encounter that could go badly and undo weeks of work.
The off-leash dog problem
The hardest situation is an off-leash dog running up to your leashed, reactive dog. Your dog cannot escape, and the approaching dog’s intentions are unknown. This is where you advocate loudly: call out to the owner, body-block if you safely can, toss a handful of treats toward the other dog to buy a second, and use your emergency U-turn to leave. There is no shame in firmly asking another owner to leash their dog.
Use it to make good choices
Reading the other dog feeds every decision you make: whether to attempt a real introduction, whether parallel walking is realistic today, and whether a dog park is anywhere near appropriate. It also tells you when your dog has simply seen too much and is sliding toward over-arousal. When in doubt, choose the boring, safe option. A skipped greeting is always recoverable. A bad one is not. A calm pass at a distance beats a risky hello every time. Knowing friendly body language makes these reads quicker.
