Help with my first covered call option: I own 100 shares of MAT (Mattel) and I want to sell an option on this, with the idea the buyer will probably let the option expire, and I'm not worried about the stock skyrocketing in the near future. How can I do this? What price do I sell the option at? How exactly do I sell the option? I was warned if I enter the wrong thing it could cost a lot of money.