Youll see, just slowly release the clutch and the car has some sort of anti-stall logic built in and will add a touch of gas to get rolling, more so than just idle/flywheel inertia.
Id say its really only relevant in true bumper to bumper traffic and I wouldnt really say it makes traffic in a manual any less annoying but this car with the manual is probably one of the easiest to manage combos.
The anti-stall is more obvious in reverse, you really dont need any gas at all to reverse, just a slow feathered clutch release and she'll back up even a slightly inclined driveway at a decent pace.
The other cool thing is you can set the parking brake at a stop and it automatically disengages as soon as you touch the gas to start moving. But you do need to touch the gas, the concept of just feathering the clutch will fight the brake.