I shall continue to raise my hand to those who give way for me
So shall I, every time.
As an amusing aside, you will know from watching the innumerable Russian driving videos that road courtesy does not seem to exist in that country (I have been there; it's true). One day at the end of a long drive here in the UK with a Russian friend - and with me waving acknowledgements to other drivers where appropriate - the friend remarked "Steve, you seem to know an awful lot of people...!".
