It's OK to celebrate your success, but try not to be too 'smug' about it.
You can wipe that 'smug' look off your face.
a 'smug' smile/expression
(..) get checked in and have this mess straightened out. Oh, great. This is just great. San Diego. Now I'll have to compete with Shamu and his smug little grin. I can't top that. Can't top it. I'm ruined! I'm done. I'm out of the business. It's your fault, Marty! You've ruined me. (..)2005 Madagascar