The suggested goals are:
EAT 3 PORTIONS OF CAKE EVERY DAY - if you don't usually eat much cake I would build up gradually or you could upset your digestion.
DO (AT LEAST) 3 MINUTES OF COMPLAINING EVERY DAY - can be whinging, moaning, or something more energetic. The plan is that the idea of doing 3 minutes is not too daunting, and having started you may well find you want to do more.