For a barista it is watching training videos and then shadowing someone. When things slow down they let you take the reigns a bit more and just watch you. Odds are your first day will mostly be shadowing the SSV when it's slow and watching training videos at peak. They will also start showing you how to do things like the pull and how the systems work. It starts really slow and easy for that 2 week training then after that it becomes much harder. Paying attention to everything and get a hang of how the store runs smoothly is the most important thing. And most importantly it you're not positive about something, ask.