You should try to learn to care about TA silently. I believe that if one day the person you like finds your concern, it will be very touched.

In addition, before you determine whether she has a good impression on you, don't confess to TA too rashly. If TA doesn't accept you, chances are that she will be prepared for you.

So, start with friends.

Try to understand ta's preferences, talk to her about something she is interested in, and gradually become ta's confidant.

Many lovers have evolved from friends.

You can also buy some exquisite small gifts. This is not a compliment! This is also an expression of love!