What do you do when you're at a make-up counter and are facing dozens of lipsticks? What urges do you feel? I'm willing to bet that you mark up the back of your hand with tons of little color swatches...no?
Well, the most accurate way to test a lipstick without actually putting it on your mouth is to put the color on your fingertips! It's messier, yes, but will give you a better representation of what the color will look like on your mouth, with your skin tone!
So carry a pack of purse-sized wipes with you (but any good counter will have supplies for you to clean up) and have fun!