The Sealy loves to be around people and will often follow their owners from room to room. They are also good with children as long as the children are good with them (this is a rule to have for any breed of dog that you plan to introduce to kids – train your kids!). Many are reserved with strangers that they first meet, but generally warm up quickly. Most do fairly well among other dogs.
They are quite intelligent, but as stated above, this intelligence doesn’t always equate to them doing what you want them to do. It should be reminded that the Sealyham was bred as a hunting terrier, and as such will definitely go after gophers, moles, mice, and any other animal in the yard! In theory this sounds great, especially if you want to keep your yard pest-free. Just remember that this also often equals to having large holes in your yard as the Sealy digs after those pests. Terriers love to dig! Another characteristic of their hunting nature is that they have been bred to be quite brave. Many will want to go after large wild animals as well so it is up to you as the owner to make sure they don’t get themselves into a fight that they might lose.
The Sealy isn’t quite as active or rowdy as other terrier breeds. In fact, many are low-energy couch potatoes. While they still needs to be walked outside of a regular basis, they are generally inactive indoors. This makes them suitable for both city or country living.