L1, L2 Visa

Thanks to the numerous posts in this website.
i got my L1b blanket visa approved today along with my spouse's and 2 month old son (L2).
i was very tensed as the VO had rejected 2 candidates in front of me and moreover one was with his family.

questions asked:
1. For which project are you going to US?
2. Are you the only one from India working on this project?
3. How many people in the team from US?
4. Will you be working for xxxx company?
5. what will be your salary?

questions asked to my wife:
1. How many years were you married?
2. How old is your son?

He started typing some stuffs and i was very nervous at that time as he typed a lot of stuffs before rejecting. But he then said that our VISA is approved and we wished him and left.

Notes:
1. i guess its the confidence with which we give the correct answer which matters.
2.the company with whom you work too matters.
3. if possible, wear the company ID visible to the VO.
4. Ultimately its our VISA and we should know what we are working on and for whom. There is no short-cut, so please prepare well before you go for the interview.
5. You need to answer the questions correct the first time, no goof-ups as there would be cross questions.
6. Hear the VO very attentively. At times what he is asking is not clear through the glass window.

Thanks a lot to the moderators of the site!
All the best for everyone who will be appearing for their Visa interview.
Thanks.