from the NSDTC website
Intelligent – Alert, outgoing and incredibly fast learners, Tollers require creative and mentally stimulating training. Due to their intelligence, some may be reserved in new situations. This should not be confused with shyness.
Affectionate – Loving with their family, most Tollers like to cuddle after a long day’s work. They are good with children, showing patience. When properly socialized, they are great with other dogs and even cats.
High Energy – Always ready for action, though not to the point of hyperactivity, Tollers are bursting with boundless energy. They have a strong retrieving desire, coupled with a love of water and an intense birdiness. Tollers are hard workers and the picture of endurance.
Mouthy – Toller puppies are little red entropy fuzz balls. As retrievers, they approach everything with their mouths. It is important to have a wide variety of chew toys, raw meaty bones, toys, etc. for your young Toller. It is also important to teach them bite inhibition as early as possible.
Vocal – Tollers are generally quiet dogs. However, when they are excited they can emit a unique sounding high-pitched bark known as the Toller Scream. Tollers can be trained to be quiet for hunting purposes and field work.
Curious – A tired dog is a happy owner, especially when it comes to Tollers. Bored Tollers will find something to do and that usually involves taking something apart. They have been known to peel drywall, de-stuff couches, and shred photographs.
Happy – Tollers are naturally happy dogs. They are playful, engaging, and perfectly at home living with humans. They have a sound disposition. While energetic, they are not known for being neurotic.
Fun – Love for life is infectious. Tollers try to engage everyone around them in their play. If you are standing near a Toller, they will drop a ball or toy at your feet. It is hard not to feel joy in your heart when you see a Toller retrieve.