Don't know if feeling is mutual?

[SGM]

Does she eat dairy?

You should message her "Hi, Susie. When is the best time to call you so I can ask you out on a proper date?"

If she has any interest in you, then she will give you an exact time to call. If she gives a vague answer or gives you excuses, then she is not interested.

When you call her, tell her you want to take her out on an ice cream date to Cafe X after school on X-day (2-3 days ahead). That's it. You were direct. You used the word "Date" which girls love to hear. And you planned an exact day, time and place which makes her feel special.

Don't talk to her again until the date. She will get more excited as the day approaches. Keep the date conversation light & fun. NO heavy topics. Make her laugh with clean humor.