The next step...

 As a couple of you have already guessed, your next task is to to write a story using your character/s. 

Just to chuck something else into the mix, you could 'borrow' a character from someone else too, and arrange a meeting - a meeting which could lead to a change, even if only a small one, in one or both of their lives...? 

Don't forget about setting - especially if this 'story' ends up being largely dialogue, setting could help to set the mood, change the pace, and alleviate/create tension.