No More Dancing :(

You've really answered your own question if you think about it.
He will "do something for several weeks on demand....."
He learns a new game and he's over it well before you are.
That's all it is, really.

It's fun at first to get everyone's reactions and then, frankly, I think they tire of "the game". They are happy to move along to something else. And then, that gets old and they move on to a different thing.
Your baby isn't forgetting. At this age, it's all about learning and exploring new things, new reactions, AND realizing they have the power NOT to react if they don't want to.
Blow a kiss! Clap your hands! Dance! Show us your toes! Point to your belly button!

Fun and cute for us, but I always think that babies must be secretly thinking,
"Dang....big people are bossy and demanding, not to mention forgetful. I have ONE belly button...can't THEY remember where it is?"

All joking aside, this is totally normal.

Enjoy your baby and look forward to all the new things he will master.
He will say and do things that will crack you up, and he may only do it once. That's okay! Treasure it all.

Best wishes.

That's very typical. They move on to newer and more awesome things! Lol. Very, very normal. No worries Mama!

Totally normal. He will focus on the skill that is more interesting to him at the time.

Gotten bored and moved on to bigger and better.

I sure hope it's normal! I'd hate for my teenager to still be doing the things he did as a baby!

All joking aside, yes, little ones go from developmental step to other steps as they "graduate" in movement and understanding. Walking and talking are huge developemental milestones, and sometimes they will stop doing one while they are working on the other.

Please don't worry about it. Just enjoy the view and go with the flow. Talk, talk, talk to him. Read, read, read to him. Give him lots of opportunity to touch, feel and play in appropriate places and with appropriate materials. Redirect over and over if he tries to do things he is not allowed to do. Babyproof a lot too.

Dawn

Yep, he's moved on.

Also, you say you started working on his belly button after he "mastered" his toes, but honestly, you need to keep working on everything, over and over again, it's how he learns. Make it all playful and fun for him, encouraging and praising him along the way.

My DD does the same thing... She is 2 now, and has been doing it her entire life. The funny thing is that I KNOW she knows these things... Example... I have been working on teaching her colors and counting. When I am sitting with her, she will only get about half right... BUT if she doesn't think I am watching her, she will play by herself and get every single color (or count up to five) perfect every time. She knows the stuff, but it gets boring doing it on demand. Plus, I think she enjoys the extra attention when she gets it wrong. Usually, when she stops doing something or plays dumb, I will move on to something else for a while. Every couple of nights I will make sure to 'review' the old tricks, just to refresh her memory, but I don't stress it. Heck, they are young. They have years to figure out where their belly buttons are! ;)