When attaching the extensions to your lashes, start at the center of your eye and move toward the outer edge. Repeat going inward, but be careful with the inner eye area, as it's sensitive, and you don't want the lash to become an irritant.
Proper eyelash placement is also important in order to achieve a natural look. Keep the clusters of extensions small so they blend in better with your actual lashes. Once you've chosen where to place a lash, close your eye and use the tweezers to put the extension on. Set it directly on top of your natural eyelash. Position the extension close to, but not touching, the skin of your eyelid.
Once the lash has been glued on, gently hold it in place with a cotton swab until the glue dries. This could take up to a minute. Blink a few times to make sure the it's firmly in place, then repeat the process with the rest of your lashes.