nos vs nosotros

In lesson 6.4 It states: "Nos reunimos el primer vierne en marzo." ie "We meet on the first Friday in March." It also has: "Nosotros se los damos." ie "We give them to you." They are both using "We" as the subject of the sentence. Should it be "Nosotros reunimos" in the first example? What am I misunderstanding?

"Nosostros" is the subject pronoun in your second example, whereas "nos" in the second can be an object, reflexive, or reciprocal pronoun in the second. I think it might be working as a reflexive pronoun...Nos (with each other) reunimos (we meet) el primer viernes in marzo.