Using the given tweet "@TheVulcanSalute , just saw the Save The Day PSA. Why were you in obvious tears doing it? I'd have thought you'd be your cheerful self.", determine the level of the author's emotional state. Your options are: 3: very positive emotional state can be inferred, 2: moderately positive emotional state can be inferred, 1: slightly positive emotional state can be inferred, 0: neutral or mixed emotional state can be inferred, -1: slightly negative emotional state can be inferred, -2: moderately negative emotional state can be inferred, -3: very negative emotional state can be inferred.
0: neutral or mixed emotional state can be inferred