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: Just watched @JoeNBC on @colbertlateshow -- &amp; have to say... I'm in awe. What hair products is he using, @greggutfeld ?? #beautiful #jealous