The Limitations of Not Having Much of a Forehead

A man without much of a forehead tries to smile. He is unable to. He then tries to wink, which he is also unable to do. Finally, the man without much of a forehead tries to speak. Before he begins, however, he tries to think of something he might want to say. Not being able to think of anything, he remains silent. It is still uncertain whether this man without much of a forehead is capable of speech or not.