What are the routines for strangers to send flowers?

A stranger sending flowers means that he wants to associate with you. In fact, many boyfriends and girlfriends have changed from strangers to acquaintances. In order to make a good impression on each other when they meet for the first time, they often send flowers to express their feelings.

Especially when two strangers come to blind date, they often send each other a bunch of roses, which represents a kind of love confession.