First of all get those lizards in a larger cage. The enclosure you have is not big enough to maintain one let alone 2 of this species, I would not recommend anything smaller than a 10G all glass enclosure. Put something in “the new enclosure” with some sort of semi moist substrate, Be careful that it is not to wet, a cool whip or small Tupperware container work well. You should soon see the female digging around in it. Check the container several times a day but try to not disturb it to much. After the eggs are laid you must removed them and put them in another container with Vermiculite or Perlite as a substrate. Keep the water to substrate ratio at about 1/1 by weight. I personally have yet to successfully hatch eggs so aliceinwl should be able to give you more insight on this.
My reptile research and collection
My reptile research and collection