If a girl is torn between two guys how does she choose?

Sit down with the two of them and explain how you feel. Then let the two of them sort it out themselves. If they care enough, then they would be quite willing to reach a solution that is best for all involved. Don't choose yourself; that will just leave one feeling bitter and angry, and won't help your new relationship with the other.

Another Answer:

Maybe she asks herself who are the people who love her and care about her the most of anyone in the world? And then whoever they are, she asks them which guy they like better for her?

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Another Answer:

which ever one your most comfortable or that is the easist to be around you should ask out and if you get rejected go for the other one