My pug is five and was only super active when he was a puppy. He sleeps most of the day but will be active when his "sister" (my brother's dog) comes over. He will usually greet us or at least sit up and wag his tail, but for the past few days he doesn't even look up when we come home. I work from home now, so perhaps when I do leave the house he doesn't get so excited because I wasn't gone for very long? He will still get up for his food, but doesn't spin around and around like usual.