Border Terriers are quick, alert, and affable. These dogs love the attention of children and are very eager to learn new tricks. They may bark, but it is only a sign of excitement and not an aggressive action. Since they are bred for hunting, Border Terriers should be kept an eye on when in the presence of smaller pets, like guinea pigs or birds, and should also be watched when they are outside, since they are also very adept diggers.
Upon closer examination, one will find the breed's tousled coat of tan, red, grizzle, or even blue and tan is actually a double coat of coarse, wiry hair.