Now that you know which frame complements your face, here are some buying tips that are worth considering before making the final choice. Make sure that the frame is not slipping down your nose or pinching behind your ears. A quick test: smile. If it touches your cheeks, then that's a no. Also, be sure to check temple arm length, nose pad comfort, and hinge quality. I used to ignore those, and one uncomfortable day later, I never skipped them again.