What a planted puppy is telling you
Puppies freeze for several reasons. The world is huge and loud. The leash is odd. The collar or harness may feel strange. The sidewalk may be scary, with traffic, strangers and dogs. Many puppies have only seen the yard, and the street is a big jump.
A puppy who stops and looks around may be overwhelmed. A puppy who flops and refuses to move may be afraid. A puppy who bites the leash may be playing. The goal changes depending on which it is. Look at the body: a stiff, low body with a tucked tail and wide eyes means fear. A loose, wiggly body means play or boredom.
Also think about timing. Puppies go through fearful phases. Our page on the second fear period covers one of them, and the first window is between about 8 and 11 weeks. A puppy who was fine last week and is spooked now may be in one.
If the puppy limps, cries, or resists in a way that seems physical, see your vet. A sore hip, an injured paw or a poorly fitting harness can cause refusal.