No shortcut as far as I know. Just the old One-Two-Three-Four. One-and,Two-and,Three-and,Four-and. One-tap-tap-tap, Two-tap-tap-tap, Three-tap-tap-tap, Four-tap-tap-tap.

I start to run out of silly noises to make after quarters!

Also helps if you can make the counts between the beats of a SLOW metronome.

I did start the submision as a serious one, honest, but just realised that I can't help myself (Phsychiatrist needed please)

And you don't get a much slower metroGnome than me after a few bottles of vin on the Paris underground....

Dave the Gnome