Smooth driving by not accelerating too hard or stamping on the brakes and make friends with your local speed limits.
Maximise your regenerative braking by lifting off the accelerator sooner and letting the regen slow the car for you, then you'll recover lots of energy back to the battery before you need to use the brakes.
Don't overheat your car's cabin. EVs are insulated with this in mind, so you can dial the heater back once you've got the cabin warm. The same applies to AC on hot days.
Preconditioning your electric car before setting off on a cold morning will save you the most range. Preconditioning is done by staying plugged in overnight and setting a departure time on the car screen or via the car's app. Then your cabin and battery will be gently warmed up and range maximised.
Look after your car tyres by making sure they're correctly inflated.
Don't carry unnecessary extra weight. Take things you don't need out of the car. Aerodynamics is important so try to remove roof bars and roof boxes as soon as you're done using them.
Try to plan a more efficient route, perhaps one that avoids steep hills and stop/starts.
And finally, give yourself more time so that you don't have to rush, enjoy the ride!