Translation of aufwärmen

Exactly on that weekend there was a traditional apple event which is celebrated every year by the people of this small town. Naturally, It was very nice to see it, to see farmers outside of the city.
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I had imagined my first dinner to be a little different, but I was already here and wanted to make the best out of it. So i ate there and return to my hostel at around ten o'clock at night.