score:5
It seems you can. A B1/B2 allows you to fully participate in business meetings, you may conduct negotiations, and you may discuss planned investments or purchases. Which seems to more than cover "meeting and getting to know the customers".
Although I'm from a country participating in the B1/B2 visa waiver program, I've never had any problem visiting our branch offices in the USA to participate in meetings.
http://workpermit.com/immigration/usa/us-b-1-business-visitor-visa-and-b-2-visitor-pleasure-visa