5 A visitor may:
    (a) attend meetings, conferences, seminars, interviews;
    (b) give a one-off or short series of talks and speeches provided these are not organised as commercial events and will not make a profit for the organiser;
    (c) negotiate and sign deals and contracts;
    (d) attend trade fairs, for promotional work only, provided the visitor is not directly selling;
    (e) carry out site visits and inspections;
    (f) gather information for their employment overseas;
    (g) be briefed on the requirements of a UK based customer, provided any work for the customer is done outside of the UK.