What Does My Almost 3 Year Old Waive Weird?

How can a 3 year old wave wrong? Unless of course he's royalty and committing a feaux pas that could have international repercussions.
As long as he's not giving the middle finger salute...I think you're okay.

A lot of little kids, including my own, wave with their palms and fingers pointing back at themselves. They are mimmicking what they see when others wave at them. Some little ones wave side to side and all over with their hand flopping in the air.
As far as hitting the furniture, you may have a little drummer in the making. My son started percussion lessons and he beat on every piece of furniture in my house with his drum sticks until I bought him a drum pad. It's portable, cost about $15 at the music store. A set of drum sticks is only about $3. Get him some sticks and a drum pad and tell him that's what he can beat on to make "music" for mommy. (You may also want to invest in some earplugs). A drum pad is actually soft and it's used to practice rhythms on. It's not like a loud drum or anything.
Get these for him for his 3rd birthday.
Save your furniture!

Don't worry about the wave.

He's a toddler, they act "strange" but it's perfectly normal for them.

The "deal" is he is a 3 year old child and this is how they act at that age. I have a daughter that recently turned 4 and she still bangs on everything. She likes to use my kitchen spoons as well. Not quite sure about the waving issue. Other than you said he is trying to imitate you and it just may not look the same yet. This is all perfectly harmless though. Just a 3 year old thing to do. My daughter's come up with all sorts of crazy oddball ideas.

You never know what they will think of next. Hang in there. This too shall pass....onto much more annoying thing's.

Maybe it IS hilarious. I'm sorry, I don't really understand what the problem is.

he's just being three. i mean we all may have done things not quite right at three or did something strange!

He's being 3. That's the deal.

I agree wholeheartedly with everyone else when they say this sounds totally normal for a 3 year old, however, if you are truly concerned and if you have seen other gross motor skills that seem off you could call your local early childhood intervention or get a referral to an occupational therapist for an evaluation.

Again, based on your comments I don't see any reason to be concerned but I know sometimes there's more going on then what gets shared in our posts.

If his body awareness just seems off you could just play games like simon says or follow the leader to give him some practice mimicking your movements.

Good luck,
K.

I had one of those. He's just showing his own uniqueness, or maybe he's practicing to be a drummer. If so, plan on buying yourself some ear plugs. lol