maybe he doesnt look puppy anymore hes matured and have a grown up look now.

when my dog got 8 you clearly saw he was a Mr. now, he still played and all but with a more serious look and prescence (sp?) and he passed until 14 years so it took a while, he never showed age and he died peacefully on his sleep, otherwise than one of my females, my first one she died also at 14 but she sure showed age, she could barely stand up, she woobled when she did, it was really sad but she got better at RB i´m sure.

dont worry i´m sure he´ll give you some more years of joy