I wore some fun underwear in preparation for potential strip searching, but aside from going to the wrong entrance to the compound on the first try, it was actually extremely smooth. I’d never been to a US embassy before so I wasn’t sure what to expect and the instructions on the website sounded ominous: come precisely on time or be denied entry, bring absolutely nothing but yourself, wallet/purse, papers in a clear plastic bag, be prepared to surrender your phone at security and retrieve it upon exiting.