Was she flirting with me?

Two nights ago I was drinking with a couple of my friends and there was this one girl there. While I was grabbing something off the coffee table the girl walked behind me and rubbed her arm down my side. I looked at her and gave her a couple silly pokes on the side back. She then said that "I did that because I needed you to move". If she needed me to move out the way she could've said so... do you girls/guys think she was flirting by trying to find a way to engage in physical contact with me?

Was she flirting with me?
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