Business Visa - B1

My B1/B2 VISA Interview was scheduled for 17th Sep'13 at 11:AM
I reached Embassy around 09:45 AM and was a bit nervous...I checked my documents again
they allowed me to enter at 10:00 AM. They just scanned my passport and gave me a token number let me go to Interview area without any queue.
Within 5 mins. I got a call that my interview is scheduled at Window No. XX

Two Guys were already standing there in front of me. VO was a early 30s gentleman but seems to be a bit tough and rude. He rejected both of their Visas who were standing in front of me. I was saying to myself that I got stuck in a wrong queue and I made my mind that this guy is tough and there is every possibility that mine would also be refused. Then that guy called me toward the window

VO - Your passport Please. How are you?
Me - Good Morning Sir. I am good Thanks!! How are you? (With a smile) and handed over passport
VO - Why you want to travel USA
Me - Sir I work for ABC Company and My Client is XYZ. Recently my client has came up with New Business Applications to run the process and I am going there to get the training on the same And I'll be attending couple of Business meetings as well.
VO - You work for XYZ Company directly
Me - No Sir I work for ABC Company and XYZ is our client
VO - For how long you have been working with ABC Company
Me - Sir for 6 years In fact 6 years and 4 Months (With Smile)
VO - Why you want to travel
(At this time I got confused since he asked me the same in the first Question and I though I misheard him So I clarified it again)
Me - Sir I am sorry I didn't get you (With a smile)
VO - Why you want to travel to united states (With a rude face and high pitch)
(Here I thought my Visa got rejected for sure now)
ME - Sir for business Meeting and Trainings
VO - Ok Your Visa is approved
Me - With a Great smile..Thanks Sir
VO - Contact helpdesk for passport delivery and have a safe journey
ME - Thanks Sir (With a Smile)

They didn't ask me for even a single document except passport during all review

I was so happy at that time that when I was filling form for passport delivery My hands were shaking :-)

Thanks to immihelp.com and all the friends who shared their experiences.

Suggestions - Be confident and dressed formally (No Casuals). Talk to VO without any hesitation in your mind.
Don't fall into argument with VO

All the Best :-)

Thanks
Dinesh