No I'm afraid sounds are not normal.
Oh thanks for the reply, but somewhat my tort doesn't produce sound of any kind d anymore. Just bubble. I'm curious what causes the sound too.
hi @Taco*mom
i know. the lack of substrate might be irritating, but if i'm not reading the hygrometer wrongly, even set up like this can get humidity up to 89%. am i reading the right thing? 
who knows if u guys can spot anything abnormal or anything unusual since im a newbie here. knows absolutely nothing about tortoise until recently.
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Thanks for he advice. still figuring out whats the problem. for the last few days since the bubbly nose problem, i started to soak 3 times a day. with warm water. tried giving variety of food but he's very choosy. only eats 'sawi' or a few bites of 'kailan'. i tried giving hibiscus leaves, he takes a bite and then goes away. as for lettuce, a few sniff and then goes away. i wonder whats went wrong. will continue to do research. still has bubbly nose but not as often. usually comes out after soak. maybe that's a good sign? not sure. so so inexperience in this.I don't own a leopard tortoise, i own a sulcata. Although their diet is the same, but sulcata is well known for their hugh appetite. It should be the same in general that tort will eat everyday all day long when they feel they want it. The amount of food, i can't answer you.
And another thing, sulcata is well known for their activeness, i don't know with leopard,so can't answer it too.
Poop usually is once a day when they are having soak, some every other day.
There was a research from tom, he was observing his babies, and found out that babies raise in indoor enclosure with 1 or 2 hours of outsime time daily tends to be healhier, having better appetite and having better growth. This is not absolute, however this can give us some idea that a huge majority (we are not saying 100% here) of babies is doing better in indoor enclosure with outdoor time 1 2 hours a day.
Another research by tom also, found out that ambient temp play a significant role too.
So, with those researches along with other knowledges from all the link above that already been given to you, i think your tort still doesn't really like his environment. My newbie guess is because it is too hot, or maybe he is still adapting or what.
Tortoise do not like change. However some tort is slower than others, as long as the environment is not making him sick, than you are half way for having healthy tort. Soaks is really important. Do it everyday. Add variety to his food. I think you should read more and find out what is wrong by yourself because there are always a tiny little details that you are missed and by reading, it will comes out to your mind, "ohh!! This is the problem!!" Sometimes it is how things work
the bubble seems not normal to me, it's not big though. it feels like human runny nose consistency, not very watery but not thick. its clear. the wetness on his nose can last a few minutes even after i dried it with dry tissue paper. there may not be bubble but there's definitely wetness. the wetness then will dries up.
