Mass is a participation by Catholics in the most holy and solemn sacrifice of Golgotha where silent worship, reverence, and remembrance of Our Lord's suffering on the Cross, His death in expiation for our sins, and His joyous resurrection are celebrated.

Mass is not a hospitality fest or a meet and greet.  

At its conclusion, Catholics may socialize at coffee hour.

Contrary to what our culture teaches, it's just not all about us.