Most gecko's are nocturnal, so check during the day if they are asleep, then at night if they are awake. if they stay awake all the time, consult a vet.
Assuming you mean gecko, its a lizard. Google them, there is the Leopard Gecko, Crested Gecko, and the Gargoyle Gecko, just to get you started
if they only shake their tail a bit it means there about to pounce
If you mean cohabitate; yes: during youth, but they should be separated at adulthood. If they are both male; the central American banded gecko is territorial when it becomes an adult. Also, once the leopard gecko grows to be an adult it will be much larger than the central American banded gecko. If you mean breed; no, reptile species should not be mixed.
It could be M.B.D (Metabolic bone disease) It happens when the gecko's diet does not get enough calcium. You may want to check the link below for more help.
Well, you're probably in for a surprise. In other words, your leopard gecko is pregnant! If you've never had any other leopard geckos in the aquarium (or wherever you keep it) then the egg will never hatch, it's just a cycle some leopard geckos go through, and is not uncommon. No need to worry, just remove the egg; but if you have had another leopard gecko in the cage before, it was probably a male, even if you thought otherwise, as this can be tricky. If this is so, you should put a small container of fresh aspen shavings or the moss you can get, but not the sand (this can be hazardous for baby leopard geckos). Hopefully, your gecko will lay her egg in the container, and you should remove that and place them in an incubator (directions at http://www.albeysreptiles.com/incubate-eggs.htm). Continue to follow the directions at that website, and you will find what you need. If the eggs are not in the container, carefullyremove the eggs by taking all that is under it and gently placing it in the container. Try to incubate them, following the directions given earlier, but it will normally be too late by then. Hope your hatchlings-to-be will do well!
It doesnt mean anything its just your dreams
probably a leopard i know a cheetah is faster but that doesnt mean anything a leopard is stronger. A cheetah was ment to go fast, not to fight or crunch bone, there skulls are small, and body weight too. A cheetach doesnt stand a chance against even a hyena because its too affraid of geting injured.
It is displaying to another gecko.
it doesnt really mean anything a dream is just a twisted version of what your thinking about as you sleep so you know, doesnt mean your unkissable or anything like that
They are if you bite them!
Leopard geckos hiss as a defence mechanism. If you pet leopard gecko is hissing at you, it is probably not tame yet. Taming them takes time, but it's fairly easy. Pick him up (if he bites, you could wear a heavy gardening glove ) and handle him 15-20 minutes a day, twice a day. Don't pick him up by his tail, or he'll release it, and look ugly for the rest of his life.
do you mean color changing anoles because then house geckos get along just fine together but if you see them fighting take one species out