Determine the emotional tone of the following 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].". Use the provided emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. Respond with the emotions you identify or "neutral or no emotion".
joy