You're the adult and you're making all of the rules!
Have a sip and make a statement. Lighten the mood and let your personality shine through.
Keep that coffee steaming hot, while showing off that personality.
Don't like it hot??? Add ice and your drink of choice. Either way it'll look great in your workspace or while you find a moment to relax.
Keep adulting. It's not easy but you're giving it your best.