Discreet essentially means “hold your cards close to your chest.”
Discrete essentially means “go to your separate corners.”
In discreet, the two ee’s are like two eyes — what do you really want them to see?
We had to be discreet in planning Mom’s retirement party.
With discrete, the two ee’s are separated — like a sectional plate at a church bar-be-que.
Kim arranged the wedding guests into three discrete sections: bride’s friends, groom’s friends, and feuding family.
So, think it through, do you want to keep your subjects secretive or separate; discrEEt or discrEtE?