In reply to natgus:
Hey, having been there from before March till April this year I found that despite there being a few climbers around, there's no central hub where everyone hangs out, as most people have their own apartment. As the majority of the apartments still weren't open though, it did limit where people were.
There were a couple of restaurants open that attracted people on an evening and more were opening on almost a daily basis. Plus it's not too hard to pick climbers out from a crowd and if you take away the crowd and replace it with olive skinned Greeks then you shouldn't have too much trouble finding someone.
Hope that's some help, have fun,
Emilio.