Things to do in SF:
Stay away from Golden State Park.
Stay away from Little China.
Stay away from Oakland.
Stay away from Downtown.
Stay away from the Warf.
A strip club generally requires women to be in the vicinity. It's likely the first thing you'll notice about SF.
Have fun!
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j/k all.
My favorite thing to do in SF is start at Eagle's Point and walk to Sutra Baths along the coast. It's a great, simple, and beautiful hike.
https://www.google.com/maps/dir/Eagl...4369!3e2?hl=en
China Town is also interesting, though the food isn't as traditional as I expected. It's okay for a few hours, but I really don't like downtown SF at all.
If you are into ice skating at all, the rink at Yerba Buena is the smoothest ice I've ever been on.