To prepare for an interview you should always:

• make sure you know about that Company you have applied a job to, their vision, mission, the corporate values, Corporate policy statement.
• Explore all about that Company, what their products and services are, the management especially the head of that organization.
• Prepare all your original certificates, may be used for verification purposes during the interview.
• Have a copy of your CV.
• Find out the direction to that organization if you recede far.
• Make sure to contact all your referees if possible.
• You could also make some revision exercises, revise on the course job applied, not everything is on your fingertips.
• Remember to arrive very early for the interview, an hour hour earlier.
• Remember to carry your Original ID card, your pen and note book.
• Remember to ask some question if necessary.
• Be smart.