1) She is shy. You invited her friends so that she wouldn't look awkward. This is your smartest decision! In love, you must have a light bulb!
2) As for gifts about Chinese Valentine's Day, you can watch a movie about Tanabata, then create an atmosphere and choose freely.
3) Movie tickets are only a prerequisite for giving real gifts.
As for gifts, it's really hard to find. In fact, nothing matters, as long as it is the atmosphere at that time/and your sincerity! You can refer to the following gifts.
A: Her favorite thing, the thing she longed for most recently (asking for light bulb help).
C): A fitness card. Is there a good gym nearby? This is the most popular DD here now.
In fact, you don't have to send anything, just let her feel that you care about her, and pay attention to your confession that day. You'd better not say anything, and don't say anything like I love you, because the rejection rate is high and dangerous. Let everything take its course, and hold her hand unconsciously. That's the smartest thing to do.