A headhunter calls with a job he claims is just right for you. You have no idea whether he is for real. How can you qualify a headhunter quickly on the phone?

• Just take your chances. Any opportunity might be a good one.

• Check the headhunter's references before you agree to talk further.

• Hang up immediately. All headhunters are trouble!

• Test the headhunter by asking who referred him to you.