Well that is neat.
I only do gridwork when I feel drawn to it.
Often a place in nature which has a gateway or portal and needs some light activation I feel really drawn to it. Mostly these places are fairly quiet... occasionally a few people.
Sometimes I see 'mirages' at certain places when I am driving around running errands. These mirages are usually portals with messages for me to recieve and are on earth grid lines which I go to and anchor and recieve lightcodes and messages act