Indicates a periodic structure in the distribution of between-turn silences in two-party conversation, a finding that is inconsistent with current stochastic or signaling models, which view social interaction as an exchange of stimuli and responses. Finds that social interaction is fundamentally a collaborative activity. (JD)

Investigates the ways in which primary school-aged children engage a teacher's attention through active solicitation. Argues that examining these interactions reveals both what the children do and allows for a redefinition of a conceptualization of "talk engagement." (FL)