Does she actually want to go out if she says "sure"?

I asked a girl out that I knew at least liked me a week prior. Anyway, we snapped for a couple of days, and I asked her if she wanted to go get some food over the weekend. She responded with just "sure" but she was smiling. I guess I would have preferred a more definite answer, but is this a good sign?

Does she actually want to go out if she says "sure"?
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