Sammypilot,
Pay the firemen at the big C, £15 ? Better than what is usually paid at a handling agent, then walk to the flying club for snacks and drinks. Tayside Aviation, 200 mtrs. (Busy flight school and club)
Snacks are also available in the terminal or walk to a restaurant 500 mtrs west.
Discovery 1 mile East for a bit of culture, and city centre about the same. It's not just your flight you have to plan.
DO.