Well, generally speaking, you are not supposed to be with someone who has pink eyes, for pink eyes are highly contagious. First, you should know that pink eye, is redness and inflammation of the membranes covering the whites of the eyes and the membranes on the inner part of the eyelids. Of course, there are many causes of pink eyes, and then there are also many different kinds of pink eyes. But you should know that the common cause of pink eyes can be irritation, allergies, eyestrain, environment, wearing contact lenses, dry eyes. If someone suffer pink eyes, it will have some symptoms such as itching, burning or stinging, discharge, swelling, watering. Anyway, you should not be with him or her. Or your eyes can be transmitted easily. Just be careful about it.