During
a three-point-turn, or any other slow speed manoeuvre, consider the
'landscape'. Seldom is a road totally flat. Most times they are tilted
(cambered) or raised in the centre (a crown in the road) and
fall away toward the edges. This is to allow water to run off in
heavy rain.

Picture: civileblog.com
At
steps 2 and 5, in most cases, the vehicle has to 'climb' out of the
gutter. Therefore, in a manual vehicle especially, use the
handbrake and apply extra power. Halfway across the road, as the
vehicle moves over the crown of the road, the vehicle will gather
speed.
At
this point, press down the clutch and start to apply brake pressure.
The amount of pressure on the break will determine the (crawling)
speed of the vehicle.
Note:
Learners may take a few moments to execute steps 1, 4 and 7. Be
cautious throughout this manoeuvre. Do not expect passing traffic,
especially cyclists, to wait for you to complete your 3-point turn.