So the other day I was talking to a friend (he's a native speaker by the way). We were talking about a certain subject when I said **"How do you call that Gerry?",** **How do you say when someone is doing this or that and etc..."** And every time I'd use **"How"** he would correct me and say it's "**What**" not "**How**", "**It's what do you say, what do you call**". Why was I wrong? I think many people don't know this.