I started today with my son and my trusty work travelling solar viewer at the school parking lot. I had dozens of kids in line to look at it.
I repeatedly said, "NEVER look directly at the sun", so that none of the students would. I asked them planet questions. They mostly knew their planets and the correct order out to about Saturn. Even remembered that Pluto is not a planet anymore.
I took a closeup of the sun image in the viewer around 7:35am. Mercury's shadow is the sharp dot in the upper right of the sun. Contrast that with the slightly larger fuzzy smudge of a sunspot more in the middle of the sun.
I have already accosted work colleagues on the way in to their offices to stop to look at the sun image in the viewer. Here is the picture from 8:15am.
Fleet footed Mercury is racing across the sun. Still about 6 hours to go however.