What am I like? Lots of things... that's the problem.
Very laid-back, but passionate about my interests. Serious, but goofy. Sarcastic, but sensitive. Tough, but soft. etc etc etc People can't seem to make up their mind about who I am, but after writing that out, I guess I can't blame them.
Anyway, I don't really put myself in many situations where I can meet people, especially not other introverts, and let alone other INFPs. Not an opposites attract person at all and I crave even passing contact with others like me but it's so incredibly rare.
And if you flirted with me and I liked you, I'd flirt back. I think most INFPs are perfectly willing to engage if someone else initiates.
...and that's why they invented computers.