sentence: There's a woman sitting in her bedroom talking about how to wear contact lenses. sentence:  She demonstrates by taking the lens on her fingers and putting it into her left eye first. sentence:  Then she uses her fingers to show how to gently place the lens correctly into the eye. sentence:  Then she adjusts her upper lid to make sure the lens has fitted in properly. sentence:  Then she uses her fingers to show how to correctly flex the lens before wearing them. sentence:  Then she signs off from the tutorial and waves goodbye.