Concentration Declaration Day (CDD) is a ceremonial strategy for celebrating an important milestone in the life of every Brown undergraduate: Declaring a concentration and formally joining an academic community.
Since 2016, dozens of concentrations have hosted a CDD event in April or May. You may want to consider collaborating with other concentrations; for example, the "Watson Concentrations" have hosted a joint event.
CDD events have ranged in their format (casual drop-in or formal program with speakers). However you choose to run it, your event should focus on bringing together new concentrators, professors, and upperclassmen for one-on-one mixing a mingling, and giving new concentrators a chance to learn more about pathways for engagement within the concentration (research opportunities, seminars, etc.).