As per all jobs, research the company and know what they are planning to do expansion wise. Ask questions that you know the answer too so you can be sure the answer is a positive one. Eg; Are you looking at expanding into x region (when you know damn well they are). Upon hearing the answer nod head in approval and even mutter "excellent" and possibly "so that looks good for promotional prospects for me in the future".
Ask them what they want to hear and tell them what they need to hear.