Sophia's latest word combinations

Well, I fear we have raised a bold little girl. Her first three word sentence has arrived and it's, "I want it"....not, "please can I have it", not "mother may I see it", but simply, "I want it". She is also into taking her shoes and socks off immediately after getting in her carseat which is exceptionally irriating as I am always running late and forget I have to figure in putting her shoes on a second time. Sophia's vocabulary is definitely evolving into sentences made up of directives and verbs, for example while holding her cup, "Milk in it", or in the car, "Shoes off", "Sing it", "Read it", "See it". At least she knows what she wants, right? Her other latest thing that has us worried is as follows: When we look at her with a glare of disappointment/frustration because she's doing something she knows is wrong, she coyly smiles back and waves hi with that adorable little flicker of her fingers while saying, "Hi, Hi, Hi". I hope she never becomes a teenager.