The strange one
 

My beardie keeps moving his two front arms/legs in a circular motion. I think hes stretching. It looks like hes waving to you when he does it, What is he doing?

Mine do that all the time. Mostly when basking. Im not sure the exact motivation behind arm waveing , but I do know it is completly normal.

Arm waving in juveniles (and sometimes adults) is submissive behaviour. It is caused by intimidation by something larger or scarier than the waver (sometimes, it is the little dragon's reflection in the glass...).

It is a normal behaviour. It is just another part of the somewhat complex array of communication behaviours that Bearded Dragons possess. Not too long, you'll begin to see pushups, bearding, flattening, circling, bobbing, etc.

Wax on....wax off....wax on...wax off...

One of mine does that too, I think it is waving.

Totally normal, this is why they are often called the "tata" lizards in Australia, that was the name that the aborigines gave them before they were officially described and scientifically named

Tata= goodbye