I agree with everyone else,talk it over when and where your going to hunt a day or so in advance soyou don't mess up each other hunts!We use the walkie talkies and call ahead to make sure where the other hunter is sitting.I would still set up another stand some where in case all of you happen to be hunting that area the same day just in case.If you do park in the same spot together a note on your windshield stating the place and stand you are hunting in would also help in letting the other hunters know you are out there and to be careful.

Oh yeah...when hunting in someone else stand be sure to be courteous,keep it clean and as scent free as possible (no smoking) etc... and share any info about deer movement rubs,scraps with your fellow hunters!