Quick answer
A safe greeting is loose, curved, brief, and interruptible. Stiff frontal approaches, hard staring, high still tails, or leash tension mean you should add distance.
Green, yellow, and red signals
Healthy dog greetings usually curve instead of collide. Watch whether both dogs can pause, sniff, and leave. Risk rises when either dog becomes stiff or trapped.
- Green: curved approach, loose bodies
- Yellow: freezing, lip licking, turning away
- Red: hard stare, lunging, growling, blocked exits
What to do immediately
Keep greetings short and parallel when possible. If tension appears, walk away in a wide arc instead of pulling dogs face-to-face.
- Use distance as the first tool
- Avoid tight leash pressure
- Interrupt after a few seconds
- Reward calm disengagement
What not to do
Do not assume tail wagging means safe. A high, stiff, fast tail can signal arousal, not friendliness.
- No nose-to-nose leash pressure
- No dog park entry while already tense
- No forcing a shy dog to say hello
When to get help
If greetings often involve freezing, lunging, barking, or snapping, get professional help before repeating uncontrolled introductions.
Related reading
Analyze the greeting posture
Upload a photo or short clip to check whether the dogs look loose, conflicted, or high risk.
PetSignalAI is an educational screening tool, not a veterinary diagnosis. If your pet shows sudden behavior change, pain signs, breathing trouble, collapse, repeated vomiting, urinary straining, or bite risk, contact a licensed veterinarian or certified behavior professional.