Please do not have your puppy pull you on your scooter he is too young you can damage his growth plates on his bones. When he is bout 12-18mos old and done with most of his growing it would be safer.
To teach your puppy to come 1st do not chase him he thinks it is a great game.2nd if you call him and have to keep calling him and he finely does come do not hit him for not comming the 1st time you called. to teach a pup to come every time get some hot dogs cut them into little tiny pieces show him the hot dog & call him when he comes PRAISE him like that is the greatest thing you ever saw.Of course give him a the little bite of hot dog,Comming is the most important command a pup can learn of course always make sure it is safe to call him(example) if he is across the street make sure no cars are around before you call him.You should teach him to come in a safe area till he learns it may take a while be consitant, He is a cute pup but remmber he is learning a forgin langauge yours.