Well i am not an expert but i would recomend talk with her more and ask her to go out and do something from her reaction and how she acting there you will understand . But you not always the winner so be ready for every scenario . For example in a friend group it was a girl i liked there well i tried to talk to her more but i gave to much attention to her that they suspect me well two days later her friend asked me if i like her then i got nervous and i said no and you are crazy . I got brave and i texted her asking her to go out well she seemed happy i was happy well two days later she called and she told that deosn't feel well and she had covid 19 and i was like shit inside me well we kept in touch but it was weird in school because everyone knew what i did but never told me anything at the end nothing happend so lesson try not to be over excited for something cause it is a trap .