Not really just for kids. This is how ours worked:
Each DISer who is participating in the game received a spreadsheet and a magnet. On the spreadsheet we had all the participants and their cabin numbers listed. You started tagging the person listed directly underneath you on the list. You leave your gift in the FE (or behind the fish) and tag their door with the magnet. Now you wait until your own door gets tagged and gift is left behind. Each time you get tagged you take that magnet and a new gift and tag the second person under your name...etc...untill all the gifts are gone and you are tagging the person listed directly above you on the list now.
Example:
S Brenda cabin 1234
cntkg1 cabin 4321
JLDSMD cabin 5342
Walt & Di cabin 4624
etc
S Brenda takes her magnet and a gift and tags cntkg1's door. (me). Now she goes back to her cabin and waits until Walt and Di tag her door with a magnet and a gift. Once Walt and Di tag her, she takes the magnet that they left behind and a new gift and tags Jeff. You keep going until you reach the person who is directly above your name (In your case it would be Walt and Di because you're first). Get the picture??

Sounds complicated at first but it really is quite simple and tons of fun.
Now sometimes by the time you get back to your cabin you've already been tagged! Sometimes you wait until the next day to get tagged. We've had it where we were tagged 3 times by different DISers all at once. Our kids are grown but I understand some of our little DISers were all excited about the idea of a little gift waiting for them.
We tried to stick with smaller items but some folks got really extravegant.
http://www.disboards.com/showpost.php?p=21624095&postcount=222
Here's a link to a post I did awhile ago that has a lot of our gifts pictured.