Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: Use your smile to change the world. Don't let the world change your smile.' #quote #actorslife  #love #hardworkpaysoff #fun
This tweet contains emotions: 
joy, love, optimism