Advice on confession depends on her age, character and her
relationship experience.
Logically, nothing wrong in expressing your feelings.
Emotionally, continue dating and let you or her emotions
burst.
Witty, ask her questions that indirectly lead her to express her
feelings to you. You can talk your way out if it does not turns out
well
Agressively, start shower gifts and attention to her. Gradually,
let her feel that she is special.
Subtilely, I hate this method. Make use of jealousy to test her
reaction
There are many methods depending on your target's character. You
just need to brainstorm.
Used them if you are interested in her. Or else, dont bother
using.