Hi! I'm not sure what I'm saying (bc I'm a learner too) but I think that "right" means a "place/location"... for example, I don't know how to explain but It could be when you're looking for sth in particular with your friend and he tells you to wait there (where you are) because he's going to buy what he was looking for, so you say "okay, I'll wait right here" and then you don't move.I hope it helps you! :D I'm so sorry if my english or explanation is wrong but as I said I'm just a learner.