When you scoop your bead out the pot, scoop it from the sides at an angle instead of just dipping vertically into the pot to avoid trapped air bubbles in the pot. When you apply to the nail, try not to "play" with it too much because that can leave little bubbles in the gel on the nail. Usually before starting I like to get a little gel on my brush and swipe back and forth on a lint free wipe to make sure my brush has no gaps in the bristles that could cause bubbles. If there is a bubble, you can use a tiny dotting tool to push/scoop the bubble out before curing.