I hope I wont be discovered this way but anyway…
I was with a friend of mine going to a wedding in a (pretty) new hall. We both knew where the general vicinity of the hall but not the exact location. We were walking down the block and saw some young guys standing outside shmoozing, so we walked a bit further and tried a door but it was locked. My friend bravely walked over to one of the guys and asked where the womens entrance was. They pointed to the next block. Apparently we’d found a nice yeshiva on a break. 🙂