What if you present to a group of people with little or no preparation? What obstacles did you face? How did you handle them?

i did it during my studies and it was not up to that standard it should have been but it was good.

Presenting people wintout preperation would be risky however a little trick and use of previous knowledge on the subject wolud be of great help.

Important tip in such situation is to make the presentation interactive and let the audience participate and brain strom about the subject and answer the imbiguities them selves.