Am about to go out on my first mystery shop and I need to record the pre-call and they suggest I record when I interact w/ the waitstaff to help in taking notes. Couple of questions: 1) can I assume if I am being asked to record, it is legal to do so?; 2) how do you manage to record the waitress without her noticing you are doing it - you won't necessarily know when he/she is coming - do you keep it on and place in your purse?; and 3) any suggestions for good apps for the iPhone? Thanks ... appreciate the help!