L1, L2 Visa

This site has helped me tremendously to prepare myself for visa interview.
On 19th April 2018: I had my biometrics
required docs:
1. DS-160
2. Appointment confirmation
3. passport
It will take max 3-4 mins for biometric

20th April 2018 Visa Interview:
note: Dont carry mobile phones, watch, wallet with you.
Required docs:
1. DS-160
2. Appointment confirmation
3. Demand draft(Fraud fees)
4. I-129S 3 sets of first 8 pages
5. I797 3 sets of first page
6. passport

There was long queue but pretty organized.
When my number came, I have been asked to go to counter no XX

VO: Good Morning sir, Can I have your passport and document please?
Me: Good Morning sir, Yes sure!

VO: How long you have been working with current company?
Me: XX years XX months sir

VO: What will be your salary in USA?
Me: XX $ per annum

(He was continuously typing and looking at I-129S which I have given him)
VO: What is your job title?
Me: replied

VO: What is your general work?
Me: replied

after 30 secs approx, he said, Your visa is approved sir, Have a safe flight

Key points which I think one should look out
1. Fill up your information for DS-160 and other forms correctly.(Very Important)
2. Always smile while replying back to VO
3. Be confident.
4. You should know which visa you have applied for and who all can apply and what is the purpose of that VISA(Dont say something (work related )which doesn't get applicable to the visa you have applied for( as It might be applicable to some other type of VISA) )