Firstly, I had to complete the two tests on the Waitrose website after applying. This was fairly straightforward, and used common sense based around taking personal responsibility rather than immediately seeking advice from a higher level employee e.g. manager. I then got invited to an interview, which despite being described as a 'group assessment' turned out to be a 1:1 due to numbers. This was not really an issue though, as I definitely prefer this situation. The interview was relatively tame, firstly they asked about yourself. After the first few seconds of stuttering while you instantaneously forget everything about your being, you start to riff off hobbies, interests, etc, and they'll probably dig a little deeper into a couple just to see how enthusiastic you are about them, when you practice them, etc. Then came the 'technical questions', which took the form of 'When have you demonstrated adaptability / ability to communicate / ability to teach skills'. They then asked one about how you would make the customer feel comfortable, and how your traits would help this. For example 'I am polite so would make be able to keep the customer feeling at home and relaxed' or 'I'm organised so would be able to make finding products easier'. All in all it was quite a good experience, and the person interviewing me seemed nice enough, and wasn't imposing or condescending at all.