Just incase someone else stumbles upon this and has the same question.
To get titles, you get them from certain quests as you level up.
To change your title, you press the little + looking sign in your mini map.
Name Changes: Please check if usernames are available before requesting by typing this in your address bar:
Steam Account - doobie15
Battle.net Account - Theosis#1417
Guild Wars 2 IGN - Theosis.8752