The Texas Open Meetings Act, codified in Chapter 551 of the Texas Government Code, does not require an agenda posting where there is a gathering of a quorum of the City Council at a social function unrelated to the public business that is conducted by the City Council, or the attendance by a quorum of the City Council at a regional, state or national convention or workshop, ceremonial event or press conference if formal action is not taken and any discussion of public business is incidental to the social function, convention, workshop, ceremonial event or press conference. The City Secretary's Office may occasionally post agendas for social functions, conventions, workshops, ceremonial events or press conferences; however, there is no legal requirement to do so and in the event a social function, convention, workshop, ceremonial event or press conference is not posted by the City Secretary's Office, nothing shall preclude a quorum of the City Council from gathering as long as "deliberations" within the meaning of the Texas Open Meetings Act do not occur.