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: @LoisJoanneLane Wagging his tail at the praise, he paused, tilting his head as she took the frisbee from him, letting out a playful -
This tweet contains emotions: 
joy