What should I wear to tomorrow night’s party?

I’m returning home from tafe (community college); briefly, to prepare to head out to tomorrow night’s party. I’ve got two options of stuff to wear. My blue hoodie , yoga pants and ballet flats, or my green blouse, yoga pants and ballet flats. With a light trench coat over the top, as it’ll be cooler in the evening?

I’m going with the intention of being comfortable and I’m not looking to attract any men at the party. However, I’d like to look presentable. It’s going to be at a club, known to non Australians as a fancy diner.

What should I wear to tomorrow night’s party?
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