Height/reach
THey measure your heaight again in Dubai so I wouldn't take chances with being dishonest about how tall you are or how high you can reach.
In all honesty you just make things harder for yourself, it's very dificult to reach certain things as it is, and I can reach well over 212cm. So if you're under that it's just going to be harder onboard for you.
Stretching etc is all fine, sticking things to your feet in my opinion is just the same as lying about other things. And don't think the recruiters don't know every trick in the book!