Take out your baffle, pull in clutch and roll your right hand back as far as it will go. Works every time.
But then everyone will consider you to be a complete and utter c**t.
Trust me, the amount of complaints i hear from workmates that travel long distances and forever complain about the revving brigade makes me quite embarrassed being a biker.
Worse still, i've had it done to me before and felt a sudden urge to get off my bike in front of them and spin their crash helmet around with their head still strapped inside.
It ain't big and it ain't clever, and will get you zero respect from anyone, apart from other dickwads who do the same thing, who are normally hiding their boat race behind behind their forever tinted visor.
This also mirrors the behaviour of pizza delivery mongs, and scooter riders, who think they're about to go supersonic but then chug away from traffic lights like a beard trimmer with a low battery.