I enter all the waypoints into the FMS and watch them come and go on the MFD (multi function display). I do not tune VORs since the FMS operates using VOR and GPS combined for accuracy. I do obviously pay attention and confirm that the plan drawn up on the MFD makes sense and it is tracking appropriately.

If it is a new route I have never flown or do not have more or less memorized I pull out the trust enroute and verify that the points given and points entered make sense on the chart.

Trust but verify is key.