There are three reasons for applying for the visitor visa:
1 – the purpose of your visit to the US is tourism – i.e. travelling, seeing cultural landmarks, national parks as well as visiting friends or relatives.
2 – the purpose of your trip is a short-term business trip, attending conferences, meeting with clients, partners or your management.
3 – travelling with a family that employs you as a nanny or a family assistant.
Please note that any form of employment while in the US under B1/B2 visa is strictly forbidden!