I went to New Delhi US Embassy today for the interview.
Background: I changed my employer while I was in US, and my Visa was transferred. I had to appear for the stamping as my previous employer Visa already expired more than an year ago.
Interview time was 11:00 AM, I had my wife (Indian Citizen) with me along with my Son (Indian citizen) and my daughter (US Citizen). My daughter is a US Citizen and is 5 months old. They Allowed my daughter in and did not had any problems. Earlier I read many posts where people had this question. So 'YES' in Delhi you can take your US citizen infants along with you.
OK, coming to the interview:
ME: Hi, how are you?
VO: Good, how are you?
ME: I'm good, thanks.
VO: Please give me your passports.
ME: Gave the passports. All 3.
VO: Are you renewing for your H1 Visa?
VO: Is it with the same employer?
ME: No, this is with a different employer, I mentioned Employer name.
VO: Can I see your old passport? which has your previous Visa was stamped.
ME: Gave my old passport, that was having all my previous Visas.
VO: How many years of experience do you have?
ME: Mentioned my experience.
VO: What is your designation?
ME: Mentioned my designation.
VO: What are your Job duties?
ME: Being a Manager, I manage <My employer name>'s developers and testers, Also being the technical lead I design and develop the modules for the existing application.. and so on.
VO: What is your highest qualification?
ME: Bachelor of Technology in Computer Engineering.
VO: From which School?
ME: I mentioned my University name.
VO: Where do you stay?
ME: I mentioned US City name, where I was staying before coming to India for personal visit.
VO: You like that city ?
ME: I was in Chicago earlier, but I moved to this city because of extreme Chicago weather. VO smiled, and said yes its pretty cold over there in Chicago.
VO: Your Visa is approved.
Summary: Always be confident, keep a smile on your face and answer the questions in one line, do not keep on talking unnecessarily. I saw various people getting rejected who were speaking too much.
Also, keep your folders neat, and documents handy.
I hope my experience helps the other candidates.
All the best.