Grownups should NOT ask kids to do things other adults can do for them.
This means that you should not go with, or get in a car with, an adult who asks for directions or wants you to show you a cool toy. Grownups should not ask you to help them find a lost puppy or kitten, either. If someone wants your help, tell them to wait and go get your parent right away. If the person truly needs help, they will wait until you come back with your parent.