There's a work happy hour this Thursday (just like every Thursday . . . which you know because you attend every week). But, it's also your mom's birthday. The weekly happy hour promises jello shots and a good round of shuffleboard. Score! But then again, your mom did give you life. Plus, her birthday is only once a year. It's time to make a judgment call.
Exercising (good) judgment is decision-making 101. Once you've strengthened your judgment muscles, you'll gain "the ability to judge, make a decision, or form an opinion objectively, authoritatively, and wisely, especially in matters affecting action; good sense; discretion."