OK, I'll tell.....but remember, you asked.....
play with chickens
pet pigeons
paragliding or hang gliding
cut a chunk of glass into a beatuiful gem
tap dance
rent a Cessna and fly to a po-dunk airport for a proverbial $100.00 hamburger
practice for next years marathon
paint landscape
play guitar, bass, ukelele, banjo
cut and polish rocks and minerals
Gold prospecting
wooden inkpen turning on a lathe
photography
astronomy
microbiology
Sudoku
knitting
crochet
currently building a row boat
build model rockets
repaire vintage tube type radios
Volunteer Docent/Trail Guide leading hikes at Mission Trails Regional Park
spend an hour or two on the HAM radio at night
I almost forgot, 
I'm learning how to make slip-cast ceramics. (messy but fun)
Sometimes I just sit and stare at the wall....sort of "reset".