North up, on both the chart and the moving-map GPS.

(It's an extremely useful habit, especially paying off when ATC asks where
you are relative to a particular navaid, and you can immediately tell your
relative location, without swiveling your chart around.)

-Jack


"Daniel L. Lieberman" writes:

I have been advised that some people when using a sectional always hold it
with North up even when they are flying South rather than orienting it along
their flight path. This is an option on moving map GPS systems.

Do you a) keep North up or b) orient the map in the direction in which you
are flying?

TIA