If you see them at 8 or 8:30 the gobbler may come back at 11, 12, 1, 2... get the idea. He may or may not come back your way. Personally I would move on him. Try to get in front of him but make sure you don't spook him. If this doesn't work go eat lunch or take a nap and come back about 3 or 4:00. Afternoons can be great. There is a good chance he will be fairly close. I killed one of my birds this year at 4:00 and another at 5:15. They may be out looking for a lonesome hen at this time a day. I love hunting in the afternoon. Both of those birds were killed less than 30 minutes after setting up. I'm not real patient myself, so I like to move a little in the morning, but I stay put in the afternoon. I love hunting the morning also, but I have killed almost as many in the afternoon. You still have to have patience though to be a successful turkey hunter. You will here much more gobbling in the morning than in the afternoon though, but you can still make them gobble in the afternoon.