You are late for an appointment and parked on the right at a Kwantum in Apeldoorn. You consider signalling immediately when getting in, even before starting the engine, so other traffic already takes you into account. Is this a good idea?
Yes, this way other road users know your plan well in advance
No — only signal right before departure, after the full look order
Explanation
False — An early indicator gives the impression it's stuck on by accident, or that you haven't seen others; only signal right before departure (Book p.134).