With ranked choice voting (my state is trying to get rid of it - fingers crossed), just vote the same person across the board. The election workers will question you and try to make you mark different choices, but they can't make you vote for more than one choice. When you vote for just one choice, if your choice is eliminated, your vote doesn't go to another candidate. Which ends up being just like "regular" voting.
With ranked choice voting (my state is trying to get rid of it - fingers crossed), just vote the same person across the board. The election workers will question you and try to make you mark different choices, but they can't make you vote for more than one choice. When you vote for just one choice, if your choice is eliminated, your vote doesn't go to another candidate. Which ends up being just like "regular" voting.