First, navigate to seeclickfix.com, scroll down to the "Who's Watching" section, and select "more." This will take you to the "Watch Areas" page.
Click on "Create a Watch Area," and then choose one of three options. If you select "For yourself" the boundaries will mirror the boundaries for your city or town. If you select "Draw by hand," you will create your watch by clicking on points on the map. The boundaries automatically connect.
If you make a mistake while drawing the watch area, simply click reset. Once you have finished creating the watch area, give it a title, input an e-mail address for notifications, and select keywords (optional). You can choose whether or not to make the watch area public. Then click on "Create Watch Area."