As you have a square face, you'd better choose a pair of round glasses. Usually rimless round glasses is good for your face shape. But only a few people will wear a pair of round glasses. Steven Jobs is one of them. Maybe some of them may think that round glasses are too classical. They don't follow the trend of nowadays. If you agree with that thought, you can have a try with the plastic framed glasses. Such as vintage glasses or ray ban sunglasses. They are very popular nowadays. And they make guys look very cool.