Basically, you go to your picture folder, go to the 4th folder within the pictures and post the 4th picture. Then you explain it. Here's mine:
This is Caleb and I at the Dallas Aquarium in front of the flamingo habitat. This was a couple of years ago when I was teaching the gymnasts and one of them needed to go to either the aquarium or the zoo for a school project. This photo was taken in mid-May, so it being in Texas, we chose the indoor spot.
Now, all of you do it too! It's so much fun to look back!