New to owning Tokay Geckos...questions i cant find answers to

[Warwick555]

So I bought a young male Tokay a month ago, he seems to be doing fine, he eats well (a dozen crickets every other day with occasional pinky). I'm pretty sure he's a male I selected it on the website and from sexing photos it seems to be male...
My question is, I haven't heard him make any sounds other than barking when I try to pick him up to relocate him. He got out one night while I was at work and my family said he was making squeezing noises, not the typical to-kay sound. I heard them every night during my month long stay in Philippines which is why I was interested in getting one because I thought that was hilarious and I'm into reptiles even though this is my first. I don't know if he's stressed or what. We have a dog (Jack Russell) that constantly watches him and wants to get him.
Other question I have pertaining to shedding is..I haven't seen him she'd yet, but he has spots that turn white and shed off, but not the typical whole body turns dull and he sheds. I don't know why.

 

[arlo17]

http://www.geckosunlimited.com/comm...71215-tokay-geckos-start-calling-barking.html

This may help with the question about barking/calling.
As far as white spots, if the spots are shedding but nothing else is, I'm not quite sure what the cause could be. If these spots aren't shedding, it's probably just the gecko's markings. My tokay is pretty light, but when he starts to darken he shows white spots. As he lightens up they almost disappear. These are completely normal in that case. I've attached a couple pictures of my tokay when the white spots are showing.

 

[Warwick555]

I can see his white spots when darker, and yeah they disappear when he lightens up, but these spots are dead skin and peel off