to be very friendly to people you have not met before, usually as a way of trying to get an advantage

They were hired as team ambassadors, mainly to glad-hand with fans. 他们被聘为球队大使，主要任务是跟球迷热情互动。

It's not his style to glad-hand people to get votes. 为了获得选票而与人热情互动并不是他的风格。