Its a great pleasure to see a very pleasant potraiture.But when it comes to corporate people,these guys are not the kind of people that u can expect that sort of pleasant look coz of thier mind is always on business and money.So to get that kind of atmosphere and make them look good in your potrait session sometimes you have to be like them ..... or sometimes it took guts just to be there and ask them to smile naturally in front of your lens.To be able to do that takes a good communication skill just to make them work for u .
Always be humble to these people if u r wanted to be respected.If u can do that,can't see the difficulty in any potrait session.Its always the mental power.