Answer:
Image 2: Para presentarse, para presentar a alguen, para preguntar la nacionalidad, para preguntar la edad, para preguntar el nombre
Image 4: Para saludar, para despedirse,
Explanation:
The first image seems to be dealing with either an introduction of people or a question being asked to the two boys. This implies the phrases listed
The second image implies a farewell/greeting of some sort so things associated with goodbye or hello would be appropriate