Border terriers are affectionate little dogs with a lot of personality. Highly intelligent, this breed excels at agility and games, and they just love being part of the family. Border terriers are great with kids but also a solid choice for anyone who has enough time and attention to give them. They need a moderate amount of exercise, but they make great outdoor companions as long as they're kept on a lead. Their terrier history—and high prey drive—means they might chase after smaller animals.