The correct answer to this open question is the following.
1. Name three things to observe regarding "los saludos" when
you are in a group of Spanish-speakers or observing them
-Latinamerican people are very effusive when they greet each other. Specially Mexican people. They are really unique and very fond to each other.
-The greeting includes a bib hug when bot men greet each other.
-And the shake of hands is noisy too. Both hands have to make this curious sound "click," when Mexicans say hello to each other. (The sound of "crashing" hands to make this sound. Women instead, just get a kiss on the cheek.
2. Give one formal greeting and one informal greeting.
Formal:
Good evening, Mr. Gómez. It is very nice to see you. Hope everything is fine.
"Buenas tardes, Sr.Gómez. Me da mucho gusto verlo. Deseo que todo este muy bien."
Informal:
Hey John! Hope is it going.
¡Qué onda Juan! ¡Qué dices!