Afraid to say I've not met anyone, the only time I tend to see them is at exams and the one tutorial I went to. Scotland, like N. Ireland, is all in one "region" so the tutor groups are usually made up of people spread across the country and it's possible to end up with nobody from your area in yours. Admittedly it does depend on what you are studying, some courses are much more popular than others, but as you get towards level 3 there are just less people doing them in general.
Bit of a bleak picture I know, but then that's distance learning. If there is a brick uni local to you they may have a society specific to your subject that you could join, which would at least mean conversation on the same academic topic. Also there is an OU app on facebook which was meant to help connect people studying the same courses, if it still exists.