Examine the tweet "@LoisJoanneLane Wagging his tail at the praise, he paused, tilting his head as she took the frisbee from him, letting out a playful -" and determine which of these emotions are present: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If there are no identifiable emotions, reply with "neutral or no emotion".
joy