I hadn't heard of either of these. Very clever. The closest one I know is the word WOW, which when done in front of your eyes with both hands (actually spelling

I hadn't heard of either of these. Very clever. The closest one I know is the word WOW, which when done in front of your eyes with both hands (actually spelling WOWOW fairly quickly and then holding the final W for the best effect), looks like astonished blinking.