With soft contact lenses, it's often hard to tell if a lens is inside out - this is an annoyance both beginners and long-time contact wearers may run into from time to time. Generally, a good way to tell if a contact lens is sitting properly is to make sure it resembles a bowl when it sits on your fingertip. The edges should mimic the spherical shape of the eye. If the edges are pointing outward, the contact is inside out. Some manufacturers also laser-print numbers onto the lens. They'll appear in numerical order when the lens is the right way out. If your lens is the correct orientation and there are no signs of damage, you're ready to put them in. See the image below to determine if your contact is inside out: