I don't think you could get a cat to do this.  These four dogs should have their own show in Vegas.

Four dogs, one holds the rope with the young man in the video while the other three dogs jump rope, this is awesome.  Your dog may not be ready to jump rope, but it can learn a simple command fairly easily.

To teach your dog something simple like sitting, repetition is the key.  Starting out with something easy will be a positive experience for both you and your dog.

What you do is, get your dog's favorite treat and hold it by his nose.  Now lift your hand, with the treat in it.  Keep doing that until your dog's head follows your hand.  His/her butt will naturally go into the sitting position.  When that happens say, "sit".  Then give your dog the treat and love up on him/her.  Some dogs get it right away, with others, it may take a few times.  Again, repetition is the key.

Wouldn't it be nice if we could train humans that easily, lol?