Don't pinch it or pop it as that makes it red and swollen which causes it to stand out even more.
A female can add emphasis to another area of her face by using make-up. For example, if the pimple is on her forehead, she might emphasize her lips and if it is on her cheek or chin, she might try adding a little more dazzle to her eyes. Obviously, concealing makeup can be used, but only when absolutely necessary such as when going to an interview or speaking publicly, as it can clog the pores and make the problem worse.
There are acne concealers available over-the-counter for both genders. The great thing about some of these is that they treat the problem while providing some coverage.