Answer:
Appeal to emotion
Step-by-step explanation:
Appeal to emotion is a method of persuasion used to evoke a particular emotion in the person that it been persuaded. Evoking this emotion makes the person been persuaded more favourably disposed to the product or idea. The emotions could be happiness, anger or sadness.
In this advert, I am trying to evoke happiness.
Other persuasion techniques are appeal to reason, appeal to trust and appeal to authority.