So, you wouldn't exchange F2F with a complete stranger, but with someone you've traded several times?
No, I wouldn't trade off-DEX with a complete stranger. I've traded face to face with complete strangers before, but always via a DEX where the bitcoin involved will be locked in an escrow prior to meeting to hand over the cash. But now a lot of my trades are done without a DEX because once you've traded with the same person hundreds of times, you may find you have enough mutual trust to just message each other directly and send coins directly without using a DEX.
I know it's been discussed here before, but for F2F transfers how do you verify the cash?
Personally a local casino works for me. Lots of security, cash is common and you can put some random bills in a slot machine and if it takes them you are good to go.
But meeting in other public places just does not seem as secure to me.
-Dave