Dogs usually want to play with you so make sure you have dog toys. Small toys are for small dogs and big dogs should have bigger toys. For treats try giving them a bone or some carrots if they like these food. Don't give them human food unless it is carrots, sweet potatoes and more things, before you feed your dog human food make sure they aren't allergic to anything you give them to eat or drink. You should not feed your dog chocolate.
If your dog is bored try getting a ball toy that has holes in it and put a treat for your dog inside. Now your dog with probably try to get the treat out!