If you’ve got an afternoon to kill and the weather is nice, grabbing a few friends and heading to Spark Social SF would be a fun way to spend the day. It’s a food truck park with ever-changing options, but there’s always a central bar where you can get drinks. You should start there because the lines for food here can be up to an hour if you come on a busy day. The best reason to bring friends, aside from wanting to hang out with them, is so you can divide and conquer all the lines and make the most of the options in front of you.