Picture ah.
Remember this.
Background - Say where is the setting, where is this located
at.
Characters - Talk about the characters, mayb you want to infer a
little, how do they feel, why are they doing this and that, blah
blah. You can start off with things like.
- From his/her facial expression i infer that blah blah
- From his/her actions i feel that blah blah
- I feel that he is doing this as blah blah
Before and After - Why happened before this, and what happen after
this.
Ah ya, just try to elaborate as much as you can.
Talk a little cock and no link also can, just have to say
something.
As long as its a little logical can liao.
For the conversation.
This one is really heng suay, if the topic is you dont know one
then GG.
My N level topic was "Do you think computer gaming is a waste of
time and money"
To me super easy la. Finally i can put my RTS,MMORPG,FPS knowledge
to use 
Good luck! 
