Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Just had #efficient #great #smiling service @AppleBelgique store. Impressive team of geniuses ready to redefine what customer service is!
This tweet contains emotions: 
joy