Squeegee it on. It'll help the paint lay flat. It doesn't matter if you get DCC paint on your OEM paint. I put a drop or two on the squeegee and then wipe it over the chip.
Let it dry. Depends on how cold your garage is, but on an 80* day, 10 minutes is enough for it to harden. If you wait 20 minutes, there wont be an issue. The longer you wait, the more difficult it will be to remove -which may be better and easier for you to not pull all the paint out of the chip if you haven't been waiting long enough. 2 days later and the paint is very difficult to remove with the removal fluid.
I put the removal fluid on a microfiber towel, about a half-dollar size amount, and wipe gently in a circular motion. As DCC paint accumulates on the towel, the paint (on the towel) on paint (on the car) interface will remove the DCC off the car much easier.
The brushes and finger paint process sucks. Just use the squeegee.
So,
1- allow it to dry for 20-30 minutes and see how how that compares. This isn't too short of a period of time, nor too long.
2- Use the squeegee and dont mind if you get paint on your existing paint. It'll come off really easy.
3- Wipe GENTLY. As paint accumulates on your rag (the more excess paint you have on your car from the squeegee, the more will end up on the towel, and the easier it will be to remove. Also the more DCC excess you have on your paint, you can use that as a gauge to how hard you're wiping. As that paint comes off, slow down, and be more careful with your wipes until you remove all of the excess DCC paint (on your OEM paint) so you leave the DCC paint thats in the chip.
*Using the Squeegee will help 'level' the chip, doing 2-3 layers will also level the chip.