Ironing a shirt is simple and easy when you follow the suggestions outlined by Matt McGuire in this tutorial. You will need an iron, wrinkled shirt, and ironing board. Lay one end of the shirt on the board. Take the iron rubbing it from side to side, pressing out the wrinkles. It is a good idea to fill your iron with water prior to heating it up. This allows you to steam your clothes making it even easier to get a clean press. When done ironing this section, lay the other portion of the shirt on the ironing board and move the iron back and forth to iron out those wrinkles.