Well said. Skills and attitudes from improv are incredibly useful in all kinds of situations ...
A variant I'd suggest when playing the game in real life: as well as imagining an ace on your own forehead, imagine that the other person also has an ace.
Next time you’re in a conversation with a friend or stranger, try imagining that you’re carrying the ace card, act with a matching confidence, imagine everyone else holding the same card, and treat them with the respect that other aces deserve.
This reminds me of various people who talk about the sense when they are "Buddhas", then there is a sense that all people around them are "Buddhas". A lot of beliefs in mysticism comes from hacking the brain through learning to change one's perspectives.
A variant I'd suggest when playing the game in real life: as well as imagining an ace on your own forehead, imagine that the other person also has an ace.