Definitely follow these guys advice on incubating and do your best to incubate the eggs. I would do the same, cause you never know. But, just so you're not too disappointed, in my experience the very first set of eggs a gecko lays are often not fertile. Its like they do a dry run the first time before going into real production. And it sounds like this is your leo girl's first eggs. Also, in my experience, if a leo just drops her eggs wherever instead of carefully burying them, its also a strong indication that the eggs arent fertile. I dont know HOW they know, but I swear they seem to KNOW. So the bad news is, your eggs have 2 strikes against them. But the good news is, the NEXT set of eggs she lays will be KEEPERS! (oh, I'm assuming there is a male involved somewhere). Keep an eye out for them buried in the laybox this time, meanwhile learn all you can about incubation, and "practice" incubating with the eggs you have now. Just dont feel bad if these ones collapse, mold, whatever. I'm pretty sure they're just practice ones and theres no little leo-let in there.
GOOD LUCK with the next ones!!!!!!! Breeding is really fun.