there are lots of framework outthere

eg CARE is handy: Context - explains the background, Action - explains what you did, Results - what happened in the end, Evaluation - take away and how you evaluate your actions

SCQ is another one to arouse interest from the listener:

Situation, Complication, Question 

remember, keep your ans short

the interviewer usually has limited interest span

and so keep your ans within 45 seconds per point

good luck man