When it comes time to paint, wear an apron to protect your clothes and put down a layer of newspaper or builder's paper to protect your workbench. Milk paint dries quickly and is difficult to remove once it dries. Milk paint can be applied with a natural bristle brush, the cheap ones with unfinished wood handles and blond bristles. During the first coat, numerous bristles will pull loose and stick in the paint. Flick them out with your fingernail.
Milk paint draws into the wood almost as quickly as it makes contact.
This means that you cannot successfully draw it as you can an oil or latex based paint. The action is more like daubing. Do not let milk paint puddle on the wood. Brush it vigorously and work it to a thin film so that it spreads and absorbs uniformly. Fortunately, even if the paint puddles or runs, you still won't have a blemish in most cases.