Today, I started generalising a possible coding schema for operationalise the co-referenced actions. It is based on the idea that to be co-referenced, two persons have to go through three stages in a sequential order: [P] Plan (the user states his/her intentions or ideas); [C] Commitment (the user act to some aspects to the task); [F] Feedback (the user comment on a planned or committed action).

def. [P] -> [C] -> [F]