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The primary meeting room will be Room 101A (the "Fishbowl") - . You can enter this room via the wooden door to your immediate right, just inside the multiple glass doors at the front of the building. (The first door opens into a small lobby, and a second door into the room itself.)
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Warren Hall is about a 10-minute walk from the Hotel Shattuck Plaza and the Downtown Berkeley BART subway / underground train station. There are multiple ways to walk to Warren; the simplest is probably to walk 1/2 block on Allston to Shattuck, then turn left on Shattuck (you'll be walking north, with the Berkeley Hills visible on your right), then turn right (toward the hills) on Hearst Ave. towards Oxford.
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