Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: A former diplomat is quite gleeful about the situation of Pakistan on @TimesNow\nNot quite stiff upper lip of diplomacy seen normally
This tweet contains emotions: 
anger, anticipation, disgust, joy, surprise