"Employers hiring bank tellers are looking for candidates who can provide superb customer service regardless of stressful circumstances. Expect a lot of situational or role-play questions that will assess your ability to diffuse unsatisfied customers and handle money professionally. In addition, bank tellers must also be comfortable with counting and handling bills efficiently and accurately, so come prepared to answer a mental math counting teaser."
In the group interview, we had to pair up, then introduce and "sell" each other to the rest of the room (dumb, but not hard). Really, they are more concerned with how you do than what your partner says about you. Another question was, "What kind of (sales) goals did your employer set and what did you do to meet them?" Also asked about a time you went above and beyond for a customer, why Wells Fargo again, etc.; format was open - the interviewer would ask a question, then allow whomever wanted to answer. I tried to go within the first three or four people (I was in a group of twelve total).
Again, in "selling" your partner, it's better to worry about you doing a good job than them properly describing you. (My partner got every fact about me wrong, but I got the job and she didn't.) For the customer question, the short and clear answers seemed to do best; you want to give a good description of WHY this situation was so unique, and how you exceeded the expectations of the customer, but without droning on. For the sales goals one, I talked about "server bingo," where each server tried to sell various items on a "game board" that we didn't normally sell a lot of; my golden answer was, "I payed attention to what the customer was looking for, and found a way to match that to the products I was trying to sell, without selling them things they didn't really want or need." (Their big thing is assessing needs for customers, so without using those exact words, anything along those lines sounds great to them!)
Do you just explain yourself and your skills to the other person and they take notes on it?
Pretty much, yes - they may or may not actually take notes, but essentially you are giving a brief description of your sales and customer service experience, and why you are qualified for the teller position. Sales is particularly important, because regardless of what they may say, it's a sales job far more than a customer service job (our interviewer actually told us that, and she was right). Things to include when talking to your partner are where you work or have worked, how long, etc., and if you have any, maybe mention a sales award or standard you have achieved. Honestly, though, pay more attention to what they say about themselves than what they are learning about you; you want them to have things to say, but if you sell your partner well, that will reflect well on you. They won't hire someone based off of what someone who has known the person two minutes says about them, but they WILL hire YOU based on how well you can sell that person.