A boy meets a blue girl during the crossing of the Tejo.The sky, the river and the girl's mysterious smile turn a routine travel into an adventure of suspicious smiles, misunderstood sentences and occasional thefts. The boy experiences different sensations: fear (he stole, almost invited, a wallet to a drunk man asleep next to him), excitement (the blue girl challenges him, and seducing the lulling purr of the boat, throws him into the astonishment of the blue insecurity, filled with dreams and youth). To the little inexperienced pickpocket it will remain the lesson that even in the more obscure trade the intelligence is a very seducing companion.