Given that I'm a miserable prick I usually ask them to leave me alone (literally) and tell them if they manage that well then I'll tip them extra. I'll shoot yardages, read putts and manage head cover situation on my own but don't mind help locating errant shots.
I'm not good enough to have someone running after my ass all day or telling me where to hit because I have no idea where it's going anyway. I feel bad for whoever gets stuck with me, especially if it is hot out.