I use a fluffy blush brush for this, tap it out on my hand first and apply to my temple, the high plains of my cheek bones, and a bit on my jaw. So kind of like the "3" just minus the parts too close to the hairline. I then go very lighting down the middle of my face, a bit on my nose, a teeny bit on my forhead and chin. Think of where you would get the most sun. Go lightly through the middle so it doesnt look like you have a big cocoa brown line, but it gives a more natural harmonious glow imo.
For the record i am a MUFE HD 115.