He didn't want to capsize in the gutter, so he put his contempt aside and stared coldly at Miao Keran. He had submitted himself to the Long family with no chances for advancement, but now he had an opportunity to work for Fourth Young Master Long, and he couldn't afford to waste it. Which was made even better by the copious reward, who wouldn't like that?
Could it be that the past Miao Keran was just playing the role of sucking the tiger? He quickly abandoned this idea. The reason was simple - he understood Miao Keran far too well. Ever since he was seven, Keran had practically confined himself to his home. Every time he saw Keran, the boy would immediately turn and run. Keran could not be considered as someone capable of cunningly manipulating others.
As for what just happened, it must have resulted from him exerting himself too much with those two girls the previous night, causing him to be dizzy now.