I'm a recent PPL, flying out of Cambridge. Next couple of flights I intend to make already have willing victims, ahem, volunteers, allocated to seats, but there may be the odd occasion when I have the aeroplane booked for an hour, and an empty right hand seat.
I tend to stick to weekends, and probably won't have a seat spare for a good month or so, but if there are any studes or non-flyers who can potentially make Cambridge at short notice, drop me a PM...