Looking at the moon through binoculars is always good. So are growing plants and making plans to watch meteor showers and lunar eclipses as a family.
If you're over eight, one can choose a mission to follow on the Internet and/or keep a journal of the highlights as they come in.
I have done all of these things and they are dynamite!

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"If you think the LHC will create black holes, you might as well believe Hobbits are at the bottom of your garden."- Dr. Mike Inglis
Rovers forever! - ToSeek
"Carl Sagan sent a message to ET,
Neil Armstrong walked in the Sea of Tranquility
Steve Squyers built Spirit and Opportunity
Dan Haylen upchucked in zero gravity." -Brent Simon, The Space Camp Song