well come on you faggot.. its not that hard really is it!?
ask them if they know much about the company.. so you can see if they have researched much? shows initiative
ask if they have any experience of what the job entails.. ie what you do! (NOT 'lick Mike Rainbirds bum crack clean on passionford.com!

)
give them some details about the company and what you do / did then ask them to tell you about themselves, re their current job, history etc...
etc etc
its not rocket science you c-unt!