The sterotype of actual scapegoat. Usually males are drawn as hairy blonde guys. When USA is mentioned (they call it as America not USA) it is always defined as villain.
A random anime girl: America! UHHHHHHHH DEMEE KEISHATSUUU SENPAI CATCH AMERIIKAANII SPIES ON MY ANIME!
Western boi: What USA there is not any spies on your Shoujo Yuri Anime.
USA weeb: YAYY! I HATE MY COUNTRY I am going to defeat America on Japanese Animes with my special genjutsu.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.