Unfortunately for my sanity over here in UTC+9, I can’t just sleep through the whole thing. I’m hopeful that work will be busy enough tomorrow that I won’t have time to think about it. What I also know is that it’s most likely going to get drawn out longer, so I won’t likely be specifically watching anywhere, but just picking up occasional US news somewhat accidentally along the way (either here or via fark). I voted as soon as I could print my overseas ballot and get it in the mail so I’ve done all I can do.
I’ve mostly heard ‘yanks’ in English. I don’t know if Japanese slang specifically has a word for USian foreigners as most situations don’t really care about which country and, if more specificity than ‘foreigner’ is required, it’s usually going to be some adjective/descriptor (loud, rude, skin_color_here, etc. in the case of people being those things).