Leaders go first. Make your bull terrier wait at the door until you out the door first, then allow the dog to go through it. Use a hold word like "wait" and then a release word.
Leaders eat first. You and your family eats first, then you feed the bull terrier and never at the table.
Leaders control all food. If a bull terrier eats anytime he likes, he's the leader or the Alpha. No self feeding.
Leaders get the best spots. Do not let your bull terrier on your furniture including your bed. He can come only if you invite him.
Leader has the highest place to sit or lay down. If you have problems with your dog do not let him be higher than you are. Do not sit on the floor while your dog is lounging on your sofa. Let him be on the floor next to your leg and you sit on the sofa.
Leader can go where ever he wants and the dog must get out of his way. There should not be any resistance on his part. He should move away quickly, if not just run right into him.
Leaders get to see tummies and genitals. Submissive gestures for the dog is to expose his stomach and genitals to the Alpha. You can use a tummy rub for that purpose.
Leaders stand tall. When playing make sure you put your hand (paw) or head on your dogs back or put your chin on his head, do not let him do same to you. If your dog is misbehaving ...stand up...... be tall ....don't bend over..
Leader can stare. If you look at your dog do not avert your eyes first - wait till he does.
Leader can take the toys and keep them.
Leader does not play TUG of Wars.
Leader does not chase members of his pack. Do not chase your bull terrier, rather let him run after you.
Leader is fair and benevolent, not cruel.
Leader =Alpha inspires security, confidence and happiness in the pack members.