I am not taking raw money with friends either. But when it's assistance I can't offer virtually, i.e. when I need to drive to them in person, then I expect them

I am not taking raw money with friends either. But when it's assistance I can't offer virtually, i.e. when I need to drive to them in person, then I expect them to order pizza to eat together in return after the job's done. It brings the point across that my time's not free, but it's not as unpersonal as handing over a Euro bill. One can also have a nice chat while eating.