River/Riverself are xenopronouns anyone can use if they're comfortable with it. How to use: "He went to the park" replace it with river. "River went to the park" "He did it himself" replace it with river & riverself. "River did it riverself" "He's leaving" "River's leaving", , don't use these like a name when talking as it would be weird. example; "Hello, River" replace it. "Hello, He" it sounds/looks weird, doesn't it?