Ask HN: Going to be in Silicon Valley for a week. Any must-attend events?

I posted this a little while back, and got some votes from folks who were also interested in responses, but there were no responses. Sorry for the dupe, but I'm hoping for some good feedback this second time around: I'll be in Silicon Valley from Aug. 21-27, and wondering if there are any must-attend or good-to-attend breakfast, lunch, or evening networking events in the area. Trying to pack my days while I'm there.