I use beige, make sure you ask them to try a color lighter and darker than what you think suits you, just in case- and then ask someone which looks better. I just lightly brush it all over the face and don’t even use a mirror if I’m in a hurry. If you have any specific areas to cover, it comes with a small sponge, however, please don’t use the tiny brush that comes w/it, its not very useful.
Stays well, yes- I actually think it looks better the longer you have it on, I guess because it blends so well.