Your dog should look at you when you call even if he/she is engaged in another interesting activity.
Your dog should be able to sit as another person or dog approaches.
Your dog should not lunge toward another dog or person.
Your dog should have NO history of fighting or biting.
You should always be in front of your dog when you cannot see far enough of ahead of you to know if others are approaching.
Your dog may be the friendliest dog in the nation BUT, other coming DO NOY KNOW THAT. A mother pushing a stroller should NOT have to wonder if your dog is "safe". Call your dog, heel your dog, leash your dog and ask the person if they are OK with friendly dogs?
Be a responsible pet owner and if you need help call a professional.