A.J.
Oooh yeah. Girls do all those things at that age. My oldest daughter is 6 and my youngest is 2 1/2. The youngest is much more fiery and temperamental (she's still the master of the quivering lip and silent cry face), but even the older one did all of this. Or rather "tried it". We clamped down immediately on bratty tones and actions just to prevent escalation. At almost three, yes it's developmentally normal, but also NOT AT ALL too early to discipline it and prevent lots of future drama. It's actually the CRUCIAL time to. Kids this age are brilliant and very fast to learn if you are CLEAR with them. My youngest had an extremely angry difficult personality ever since age 9 months (tantrums started a full year sooner than older two) and even she won't execute a full blown tantrum or mean angry action like hitting or throwing at a parent or fellow child because of (very) early discipline. I love the book Back to Basics Discipline by Janet Campbell Matson. All my kids snuffed those yucky aggressive phases really quickly with effective discipline which enabled us to keep things positive and happy most of the time and avoid terrible twos threes and beyond.