Ah, yes, the tissue-handouts. This is one thing that I've seen many times in manga/anime and despite it being apparently pretty common in Japan, I don't fully comprehend how exactly it works.
I mean, disposable tissues are very handy to have available, but why are they handed out like this? Is it a public service (paid for by taxes)? Is it a form of advertisement, like the tissues have the company logo on them? Why is it rude to approach and ask for tissues when someone is handing them out (if you need tissues, isn't this the prime place to obtain them)?