I've been traveling for nearly a week in southwest England and have not seen an American. There are plenty of tourists but not a Yank in sight. This is Cornwall, where the last native speaker of the Cornish language probably died in the late 1700s. But there still is local pride.
Lunch Break! Since you are in SF it is likely flexible. Maybe you like yo-self a little noon workout... Fancy an indoor stationary bike ride with a group of sweaty dentists? Suggestion alert! Trade that silly class for a hilly pass!
Nobody is going to look better on this Fashion Week Friday than suburban dads. Why? FLEECE. On Monday through Thursday, we're all business in our buttoned-up clearance clothes from Banana Republic. But by the end of the work week, it's time to TGIF. Thank God It's Fleece Day.