You never know where the next good idea is going to come from. So encourage people to try on new ideas for size before deciding whether to pursue them. Too often, people assume that the fiercest critic in the room is the one who looks smartest. But if you criticize before deeply understanding an idea, you won’t be able to use that knowledge later when you need it. Set an example by focusing first on the positive parts of a new proposal before finding potential flaws.