Is done more subtely than a lot of chasing. IT's more like sneaky hunting. You have to see them far away, and keep the area locked in you mind. When you get there, they will likely be gone...but you will know they are there at least. Sitting and waiting works good. They will eventually emerge back from hiding.
Noosing works great when lizards immediately spook into close hiding, as does hand capture. the few lizards I caught on my last trip were all caught by hand. I had my noose along, but the lizards were going under cover very quickly. I would life and grap. Keep in mind, this can be dangerous play, since venomous snakes often occupy the same habitat, as do other risks such as bees, hornets, and wasps. I did lift one rock, that was loaded with large wasps. It was luckily still cool enough in the morning under that rock, that they did not disperse.
The noose is essential to have a long...or you can make one, as long as you have some fishing line or what I prefer, dental floss. The waxy floss, can be pinched together to hold a better knot.
John