The following business activities are permitted by UKVI on a Standard Visitor Visa: Attend meetings, interviews, conferences, and seminars; Give a one-off or short series of non-commercial talks and speeches; neither yourself (the visitor) nor the business can make a profit for these activities; Take part in negotiations; Sign deals and contracts; Attend trade fairs (direct selling is prohibited, so trade fairs must only be attended for promotional purposes); Carry out site visits and inspections; Take part in work-related training (only if the training is not available in your home country); Deliver training to UK employees of your overseas organisation. While in the UK on a Standard Visitor visa, you must not undertake any paid or unpaid work for a UK company, or as a self-employed person.