We used to call that 'pitf*rts'! :rotfl: :rotfl:
Also, that thing where you cup your hands with thumbs together and blow to make an owl sound - couldn't do that one!
What about cracking joints? :sorry: I hear
that a lot nowadays!
I can make my eyeball squeak on the (very) odd occasion!
Oh yes - everyone's favourite...hiccups. :jump: :gnasher: