Between about three and fourteen weeks of age a puppy’s brain is unusually open to new experiences. Things met calmly in that period are filed as normal for life. Things met badly, or not at all, tend to become the fears and reactivity we spend years managing later.
The window
By the time most puppies come home at eight weeks, nearly half the window has already passed. You have roughly six weeks. That is not a reason to panic; it is a reason to be deliberate.
What to cover
Aim for calm exposure to
- People of different ages, sizes, and appearances — hats, beards, wheelchairs, prams
- Surfaces: grass, sand, tiles, gravel, a wobbly board
- Sounds: traffic, vacuum cleaners, thunder recordings at low volume
- Handling: paws, ears, mouth, being lifted, being brushed
- Other dogs — vaccinated, known, and calm
- The vet clinic, for a visit where nothing happens
The goal is not to make the puppy love everything. It is to make nothing a surprise.
How to do it well
Short and positive beats long and overwhelming. A two-minute visit to a car park with treats does more than an hour at a busy market. Watch the puppy, not the clock: if they are shrinking back, tucking the tail or refusing food, you have gone too far and it is time to leave.
When vaccination and socialisation collide
The old advice was to keep puppies home until fully vaccinated at around sixteen weeks. That advice protected them from parvovirus and cost them the socialisation window. The current balance is to socialise carefully from the first vaccination onward: carried in public, on clean surfaces, with vaccinated dogs you know, and in a structured setting like puppy preschool, which is run in the building your puppy will keep coming back to.
