Workplace Dynamics Ep.29 - Knock! Knock! Are you there?

If you send an acknowledgment note to an interviewer, after your interaction... would that look like desperation or seen as someone who takes the initiative or being participative? Has the lack of participation in enterprise initiatives become a common occurence? If yes, why so? Why dont we participate in events, ritual and processes of the enterprise? Why and when do we give things a cold shoulder in the work context? Is there a hack for genuine participation versus the tick-in-the-box participation?