Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @leighsteinberg April 25th, 2010 for me. Keep up the good work!! #sober #prouder
This tweet contains emotions: 
joy, optimism, trust