Make notes, as it will be impossible to remember everything you’ve been told. This way you can read your notes in the evenings, which makes it easier to remember the information and allows you to come back prepared the next day if you have more/follow-up questions. At a certain point you will start performing your duties by yourself. However, at first the host family will monitor you and give you feedback. Expect to be corrected, as every family will have their own way of doing things and it will be impossible for you to know how they want you to do certain things. Please do not take these corrections as personal criticism; it is all part of the learning process.