they're not only for reading things, they're for stuff that your hpone does. scan the table in a restaurant, phone brings up a menu to order from. scan by the convenience store counter, phone brings up a payment prompt (weixinfu/zhifubao). access your virus control app, bring up a qr code on your screen, and the virus test staff can scan it to get all your ID info and register you as getting tested. easy quick and useful.
I wouldn't scan a random code on a printed sheet of paper taped to a lamppost tho
they're not only for reading things, they're for stuff that your hpone does. scan the table in a restaurant, phone brings up a menu to order from. scan by the convenience store counter, phone brings up a payment prompt (weixinfu/zhifubao). access your virus control app, bring up a qr code on your screen, and the virus test staff can scan it to get all your ID info and register you as getting tested. easy quick and useful.
I wouldn't scan a random code on a printed sheet of paper taped to a lamppost tho
but I don't want to bring my phone to restaurants as I do not wish to be contactable while I eat
how do you pay though? cash?
Card?
card mostly but also cash if I have it
Why? Those are the best ones.