Head straight to the family home to spend the day with the children. Lead games, creative activities, and outings (park, playground) in English. Share lunch together, then drop the boy off at his music lesson at 2 pm (2-minute walk) and pick him up 45 minutes later. As their first English-speaking nanny, focus on building comfort with the language. Aim to spend at least 30 minutes one-on-one with each child doing structured activities such as vocabulary revision with flashcards and simple written exercises - all in English.