By playing lowbie thieves who used 'knife' to kill their foes. You die a lot, but you learn really fast how to chase down opponents. Hero range is not the range to learn how to chase foes down, by the time you get there EVERYONE has already learned to maximize all their skills and it can seem like it is you versus the world.

If I were you and I were really concerned about learning to chase/pk people, I'd play a few lowbie characters with the pure and simple purpose of learning to pk and chase.