US Business Visa B1 Questions, rejection

Visa Officer (VO) Why are you going there.
Answer: to attend training,
VO. Would you do training or attend
Me: Just attend.

What do you do in your company
techical member, handles team etc.

Your salary
as mentioned in DS160

VO: Client Name
me:  xyz

VO: Your company
me: zyx

VO: give me your scheduled
me: handed over

then VO checked on computer for 1-2 minutes, scrolls. then give me Green Card(not that green).

what all you need to take care:
Be confident
you should be aware what you entered into your form., Salary, experience etc.
Be formal.
keep eye contact
Keep documents Ready.

Let me know if anybody have any questions.