Define the behavious that need to be assessed.
Say X
Break it down to its components Y , which are actual behaviors leading to X
Ask questions like Describe a situation or When faced with (Starting with any W or H , should be open ended)
and probe & You will have your answer.
Example
Customer Service profile
One of the behaviours we want to check is that person should not loose his teper when facing irritated/angry/pesky customer.
A question
We all have faced situations when we had to deal with with irritated/angry/pesky customer. Describe the worst customer you have faced.
What made him the worst.
How did you handle the situation
What was the outcome
What would you do differently
& more such probing questions
Fir each behavior atleast use two situations...