My idea was after the whole execution thing and the Dragon and the Blades guy, my character would leave the city and find a small town. Still in disbelief that he is a true Dragonborn, until one day when -suddenly- my character is hunting and then a DRAGON SWOOPS DOWN and then my character goes all Dovahkiin on it and shouts at it until it dies. AND THEN he realizes that he is the true Dragonborn and must save Skyrim from this disaster.
except... you know, im pretty sure you have to read a word wall to get the first dragon shout word, and you also have to kill a dragon in the first place and absorb its soul in order to use the shout... you cant just start shouting out of nowhere.
unless you plan on doing all that first, then pretend it never happened... i would think mysteriously understanding the dragon language, killing a dragon, and finally svcking the very soul from its corpse, turning it into a burning pile of bones... would make it pretty obvious someone is dragonborn. :confused: