Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: @MisterSalesman @ThinkPostsDaily #smiling doesnt necessary means your happy.sometimes it just means you're strong!
This tweet contains emotions: 
joy, optimism, trust