When asked to make a lane change during the driving test, you should:
Make the change as soon as the examiner asks, without looking.
Use your turn signal and change lanes when safe.
Make the lane change as quickly as possible, even if that means cutting off another driver.
You will be asked to change lanes during the on-road driving test. When the examiner asks you to do this, you should make the necessary traffic checks and use the proper signals before changing lanes.