I want to order a white chocolate mocha from starbuck but i never been can anyone tell me how

I used to work at Starbucks and honestly, you can say you want pretty much anything and we're expected to know what you're talking about, not the other way around. If you want a small it's a tall, medium is a grande, and large is a venti. I'd suggest a cold one over a hot one because the hot one's pretty sick. So say you wanted a hot medium? It'd be a grande white mocha. Or a large iced (which is 4 ounces more due to the ice) would be a Venti Iced White Mocha. Cheers!