[Geoff Bacon]

Thanks for the explanation

I wear glasses so winking doesn't work

Turning Head left and right  won't work because I may look around the audience

Open Mouth no use because may be singing

Doesn't easily detect lips left/right and doubt I can sing while contorting my lips for what seems a long time.

If you advising that I don't use head up/down then that only leaves eyebrows!

I can't think of any other actions one can do with one's face (tongue out? - but the audience might not appreciate it!)

So it looks like I'll have to stick to just using eyebrows.

While it is not as versatile as I would have liked, well done for implemementing this as I'm sure many others users will find it very useful.

Cheers
Geoff