You know you're a peds nurse when you look for scalp veins in a newborn at home.
You know you're a peds nurse when you feed your niece facing you in your lap and burp her using the chin hold (this is true with me and my cousin who is also a ped nurse..we have pictures).
You know you're a peds nurse when adults ask you for medical advice, you tell them they are out of your age range.