Examine the tweet "@sportinglifecan I keep a down vest or sweater in my pack year round! Helps on chilly mornings or breezy mountain tops! #mysportinglife" and determine which of these emotions are present: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If there are no identifiable emotions, reply with "neutral or no emotion".
joy, optimism