At risk of sounding ambiguous, you do what the mix tells you to do. Theoretically, you did that already while mixing.
That said - Line 'em up in a project so you can bounce around between tracks and do what they're telling you to do. You'll probably find EQ tweaks from track to track that might make them sound a bit more cohesive, you might find that some tracks are "unusually dynamic' compared to others that might need a bit of compression, you might find that one or two feel like they have a stereo image that seems off by comparison (at which point you'd be better off revisiting the mix in most cases), you might need to adjust the apparent volume from mix to mix, you might find that they're all fine.