How do I ask a girl if she likes me and not be awkward about it?

This girl shows all kinds of signs she likes me. I even asked a friend about it and he thinks she likes me too. I want to ask her if she likes me but I’ve never done it before. What is the best way to do it and what to say. I don’t want to put her on the spot.
How do I ask a girl if she likes me and not be awkward about it?
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