1. Just take yourself
2. Look as smart as possible. Not all managers will care about this but you never know. Wear nice jeans and a shirt if you have one, id stay away from the hoody
3. You'll probably get asked more about you and why you want the job but it cant hurt to know a bit about the company
4. If you have any requirements like you can only work so many days a week then say then. Also its up to you if you wanna know about pay/holidays etc
5. You dont need to know anything about coffee, youll get taught that on the job, but again, a bit of pre-interview homework wouldnt hurt
6. Yep that sounds good, nothing wrong with saying 'just for money' but put in the other stuff about how youve always found costa to be a nice place. Also if you say you live nearby it might give you an edge because you'd be nearby for coming in if someones off sick
7. Everbody does all roles in the shop. Everbody is trained to work the till, take orders, make coffees, clear tables and clean, then of course the manager/assistant/team leaders have their extra bits they do. To begin with you'll probably be trained to do the till (clearing tables is a bit self-explanatory) and then work your way up to coffee machine, you won be expected to do it (or do it well) in your first few days/week
I dont think its an overly hard job. Once you know all the drinks, what they are, how they taste etc, the rest is mostly customer service/initiative.
If you wanna learn what all the different coffees are go ahead, it cant hurt at all to at least basically know a cappuccino versus an espresso.
Word of advice (if you get the job/a trial shift): Take some initiative. If you something needs doing like tables clearing, something needs stocking, then do it. If you dont know how/where then ask. Ive worked with sooo many newbies who stand there like a wet lemon when you ask them to do something. Be enthusiastic, be involved, be willing, be friendly. Customer service is a big thing
(Worked there for 7 years this june
)