Fido looks at you, wags his tail, his head goes down, his ears flap a bit like Dumbo, he gets this worried sheepish look on his face and his legs buckle as he lies down on the couch. (ridgeback.org)
Shortly thereafter they both reappeared, with sheepish expressions and AN EMPTY PLASTIC BOX! (family-friends-food.com)
I also see mothers at the grocery store or in the park and, even with the moms I know and love, I find myself thinking the things every mom thinks about other moms, but doesn't say out loud; things that I sometimes feel guilty for and sometimes feel ridiculous for and always feel sheepish about because, I mean, I'm an adult. (romper.com)