In this video, Professor Antonio Gonzalez explains two lines of action to be able to ask questions to the customer and know if he is ready to buy. The two lines are related to the commercial visit; on one hand, it talks about the visits to develop and advise the customer, and then covering the sales closing visit. The video also explains about the "GAIN Scheme"(Goal, Asset, Information, Next Steps), fundamental in the execution of the visit objectives within a commercial meeting.