If you just got your puppy last night, it is completely normal. It can commonly take 2-3 days for them to feel comfortable around a new family. Particularly if he was shipped or traveled a distance to you. He's been around a lot of new stuff lately. Make sure he has access to food and water (although he may not choose to eat much for a day or two....you can entice him with a bit of canned food or canned tuna or chicken) If he is playing good, that is a good sign.
I am assuming, of course, that he is at least 8 weeks old and was fully weaned from mom. If not, it may take quite a bit more work in the area of feeding.
Congrats on your new guy! |