Identify which emotions are conveyed in the tweet "Full of #optimism after the FP Summit yesterday. Thanks to @melindagates @FP2020Global @UNFPA and @DFID_UK we're thinking about #HerFuture" from the following list: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If none are present, respond with "neutral or no emotion".