Do not use “pickup” lines, AKA “Rizz”. This will uncomfort the girl you’re trying to impress, but a 45% chance you’ll compete.
DONT act weird. I’ve seen many, (not much) act weird around their crush, formerly known as ADHD. but don’t do shifff that makes your crush uncomfortable.
If she rejects you, just wait a few months.
Tell her about her day, and how she feels, And her favorite hobbies. This will give you a chance to make a relationship with her.
Knowing each other.
Make sure you’re active with her, and do some activities.