The Boxer is alert, dignified and selfconfident. He is energetic, playful, and funloving with family and friends, with a particular love for children. He is, however, generally wary of strangers and makes an excellent guard dog. Always a loyal and a intelligent family companion, the Boxer can be somewhat stubborn at times and early obedience training is highly recommended. Even tempered, noble in appearance, and fearless, the Boxer should not have any traits of aggression, extreme shyness or hyperactivity.The ideal Boxer is of medium size with a square build. more... See more text