For the second day...
Some sugestion for the Maccon's second day dialogue:
"Hola amigos" -----> "Hola chicos"
"This reminds me of my llittle hermanos" ----> "This reminds me of my hermanitos" (mexicans love using diminutives)
"Yes¡ Gracias" ---->"Genial¡¡¡¡ Thanks"
"So this is the little gato" -----> " So this is the chico" (maybe "so this is the gatito")
"Buen" (nonsense) ----> "Genial¡¡¡¡¡ (also you can use "Super¡¡¡")
"Sure I don't, mi camarada." ----> "Sure I don't, camarada"
Finally "Muchas Gracias", apear to often, maybe some of then could be more informal like: "Gracias", or "Bien", "