We use the word more with some adjectives to compare two nouns or pronouns.
Parrots are more talkative than parakeets.
Tyson has more candy than I do.
March has more days than February.
We use the word most with some adjectives to compare three or more nouns or pronouns.
I run the most in my family.
This lion eats the most in its herd.
I collected the most pencils in my class.