Open your web browser and search for Anime sites that have programs dubbed in English. There are several sites, such as justdubs.net or dubhappy.com, that now offer a large selection of dubbed Anime as well as forums where you can talk to other Anime fans.
Go to the list of Anime available on the website you have chosen and decide on the program that you would like to watch. The list should be in alphabetic order so it is easy to find a particular show you are looking for.
Choose a particular episode of the show. You should be redirected to a page with the video player where the episode will play.