First of all, a pair of womens glasses could improve your image to some degree. Glasses represent scholars in a sense. Therefore, with a pair of sunglasses on the nose, you would impress others with your scholarly temperament. We are definitely not going to mislead others with glasses but only to change our image on certain occasions. A pair of glasses could have the same function of dresses.
Next, glasses can cover and ease your nervousness. When confronting difficult situations which make you panic, you can cover your nervousness by touching your eyeglasses slowly; or you can take off your glasses and wipe them with tissue or cloth slowly, using this moment to figure out a good solution and to ease your nervousness. By doing so you would absolutely impress other with your calm and rational manners!
Third, although glasses are as clear as glass, but more or less they do have the functions of blocking your eyes from outer world. Therefore, you could observe others without giving out your real emotions.
Fourth, once you have put on a pair of glasses, there is little possibility that you can make exaggerated movement in case your glasses may fall from your nose. As a result, you will form a good habit and become calm and mature.