Citizen diplomacy (people's diplomacy) is the political concept of average citizens engaging as representatives of a country or cause either inadvertently or by design. Citizen diplomacy may take place when official channels are not reliable or desirable; for instance, if two countries do not formally recognize each other's governments, citizen diplomacy may be an ideal tool of statecraft. Citizen diplomacy does not have to be direct negotiations between two parties, but can take the form of: scientific exchanges, cultural exchanges, and international athletic events.