Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: — to reveal a broad smile. \n\n'Yeah, it's nice.' \n\nPursing his lips, he stifled his joyous expression in order —\n\n[@AVIATAUBE].
This tweet contains emotions: 
joy