Girls, is this something you would do and should I take this as an obvious sign of interest?

To make it short, a girl I work with occasionally, was complimented on her outfit by another coworker. The girl that was complimented asked me if I like her outfit, we are friends, so it wasn't weird for her to ask. Anyway, I said yes, then I went on to say how I like how she dresses in general, especially a certain outfit she wore about a week earlier. Three days later, when we were going to work together again, she wore it! When she walked in we both smiled at each other. I'm guessing it was intentional and it made my heart smile! Lol Anyway, is this something you girls would do? I take it as a sign of interest, am I wrong to think this way?

Girls, is this something you would do and should I take this as an obvious sign of interest?
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