Why would a girl tell you her schedule for the day?

Is this her way of being friends and get to know each other?

Before we talked, she used to look at me from a distance (even without me noticing). She most of the time initiated the conversation, one time she touched my chest just to "verify the color of the shirt" (like it was a little pale). I've only known this girl for about 3 months During her mention about her schedule, she said she was going to be available after 6:30pm because she was going to go to the supermarket to buy some groceries.

I didn't asked her about anything related to her schedule for the day nor close to it.

Why would a girl tell you her schedule for the day?
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