I had an old colleague who had a favourite lunch room trick - if challenged to Scissors, Paper, Rock then he would win every single time. I presumed it was some kind of behavioural psychology trick, but it didn't occur to me it's just a pattern recognition. Or maybe it was both. I should get in touch again...
A fun trick my co-worker had taught me: when someone pops in your head like this, send him a message
That split second before a throw resolves is a slice of time where you can observe what your opponent is throwing, and change yours at the very last moment.
I remember telling a friend I’d always beat him at the game, and I always did. I had no more skill than telling him I’d win each time and I pretty much always did especially if it was best of three