Task: Determine the prevailing emotional tone of the tweet, categorizing 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 most accurately represent the tweeter's mental state.
Tweet: @Author_LB Awesome. My 9 yr old grandson runs cross country. No Simon Whitfield but still a lot of fun cheering him on.
This tweet contains emotions: 
joy, optimism