Try to look at it from the perspective of the person you’re talking to. Nobody wants to make a fool of themselves, and assuming someone is interested (without evidence) is a great way for someone to become very embarrassed. Flirting is how you subtly let a person know it’s safe to suppose you might be into them and proceed accordingly. Conversations and invitations that are completely devoid of flirtation will instead tell them that you’re just being polite or friendly.

So it’s important!

It’s true that some Americans don’t have Social Security numbers, but those Americans can’t collect Social Security benefits unless/until they get one.