Let me disagree, drawing card with last click is not mistake all the time.
There are several sources of hidden information. Not only your topdeck.
For example if you're afraid of heavy bioroids it' s ok to run with your first click, facecheck for example heimdall2.0, spend 2 click on breaking some subroutines and draw with last click.
Or another example: run on naked RnD with first click - trashing ambush, run with second - steal agenda agenda, 3rd run - look at ice/operation. 4th click for draw.
But yes, if the gamestate leaves for you unknown only the top card of your deck and you don't know what you will do with your 4 clicks - you should draw first.
The general rule for me is to maximize my options only after minimization of risk.