Hi June
The best thing you can do is look at the section of this website titled 'get to know your fellow passengers before you travel', which you can get to through the Message Board or the Your Community home page. Post a message there, using the name of your tour and departure date as the title, and there's a good chance one of them will see it and get in touch. Bear in mind that not all Just You customers are signed up to this website, so they may not see it.
Failing that, you should spot your fellow passengers' Just You luggage tags at the airport.
I'm sure you'll have a lovely holiday.
Kind regards,
Olly, your editor