My wonderful father says this frequently as a way of holding a door open for someone or some creature. Often when our family dog (a sweet golden retriever) would nudge her muzzle into his hand to coax a drop of food to the floor, he would say in an inquisitive tone, “who do we have here?” with a chuckle, as entertained by the dog as the dog was entertained by the food. It is such a friendly way of asking ourselves, who do we have here? While getting to know yourself is sometimes considered a selfish, deep, that-takes-too-much-touchy-feely-stuff, endeavor, it can really help in the work and joy of parenting. And it doesn’t take much, just an inquisitive mind, and a friendly question.