A VFR waypoint may be recognizable on a terminal area chart as an existing magenta-flagged visual checkpoint (sometimes called airport reporting points or ATC visual reporting points) with a five-letter identifier beginning with "VP" in parentheses below the name. Do not use the five-letter identifier in any communication with ATC; always use the name that is indicated on the chart; i.e., "Lake Chabot" (left) or "Golden Gate Fields."
Some VFR waypoints are denoted only by a black four-pointed star and a five-letter identifier beginning with "VP" (right). These may be used for navigation but should not be used in radio communication with ATC. Other VFR waypoints are not depicted on charts, but they can be found in GPS databases or in the Airport/Facilities Directory. If they're not on the chart, don't refer to them with ATC. And don't use any VFR waypoints on an IFR flight plan - they're not recognized by the IFR system.
If you use VFR waypoints, use them responsibly. Take a few moments to load them into your GPS while you're on the ground. As you approach any navaid or waypoint, remember to keep your eyes outside the cockpit.