Pointing a dish requires knowing the azimuth and elevation coordinates for the location, aiming the dish towards those coordinates, and then gradually adjusting with a signal meter to find the strongest signal. Properly aiming a satellite dish is a very precise task that requires the assistance of a dish pointer tool. These typically are made available by satellite service providers.
The specifics of the process vary between dishes, so be sure to consult the owner's manual for the device. In addition to tools issued by service providers, the azimuth and elevation coordinates can be found on DishPointer.com, a third-party tool.
On the dish, there should be an elevation indicator. Adjust the dish until its elevation matches the provided coordinates. Using a compass, rotate the dish until the low noise blocks, the metal pieces extending from the front of the dish, are pointed toward the azimuth coordinates.
Using the service provider's signal meter, which should be included with the dish pointing tool, verify that the dish is receiving a signal. If not, ensure that it is pointed toward the correct coordinates. Slowly rotate the dish left and right, pausing periodically to achieve the strongest possible signal. Repeat this process but while moving the dish up and down until the signal strength is as high as possible.