I recently fell in love with a girl, but I don't understand her. I can only meet her in the elevator every day. Is there any good way to get to know her?

First, "accidentally bump into her" in the elevator (don't overdo it, you just have to feel good about yourself), then turn around politely and say sorry with a smile. Then create an opportunity to meet each other on the way back (he already knows you because of the initial understanding of the elevator), and then say hello directly. We seem to be in the same building ... and then we can talk (it depends on you, remember to be generous! )