close your eye's and pray to the bmx gods
That works sort of but it also helps if you did it for a living for 14yrs of your life.
Whats posted above is the best way to do it, but only add a small amount of fairy liquid to your water. If you add too much it's a right bitch to set the stickers.
If you do get a bubble which does not want to leave, we use to make a very small pin prick hole and chase the air out of that.