9. Learn how to apply concealer properly. The right application can give you a bright awake look and make you look up to 10 years younger. Once you learn, you can do it yourself in minutes! Here are a few tips to get you started: 1. Apply concealer with a cosmetic sponge. Dab a small amount onto the applicator and dot the concealer under your eyes. 2. Blend the edges of the concealer thouroughly to avoid a noticable line where the concealer ends. 3. Set the concealer by applying face powder over the top of it. That keeps the concealer from becoming greasy as the day goes on and keeps it from rubbing off.