Determine the valence intensity of the following tweet, considering the mental state of the author. Assign a real number between 0 and 1, where 0 denotes extremely negative and 1 denotes extremely positive.
Tweet: Headed to Montalvo w/@jaxster3—bring on the #mirth, bitches!\nd(-_-)b\n@Nick_Offerman\n@MeganOMullally\n#SummerOf69Tour2016
0.537