Water. Some foods make you retain more. Exercise, like walking a lot, can also give you a bounce.

I managed to get over 10000 steps with walking from hotel to graduation and back plus walking around in the convention center where it was held. Not logging any of it, but since I don't care if I go over tonight it doesn't really matter.

On phone, just attaching total from yesterday with some of this mornings breakfast rolled back to make it 1600 even.