Answer:
ingratiation
Explanation:
ingratiation is a psychological technique that is conducted by making our target like us first before we try to influence our target to do something or adopt a certain way of thinking (this is what sergio does when he praises his coach for his good judgement).
When we like someone, we are more likely to become biased and might ignore the negative aspects that exist in that person. This will make us lower our guard and become much easier to be influenced.
