"dito" can be a noun or adverb, while "narito" is adjective: "DITO ako ipinanganak" (I was born HERE) - as a noun "pumunta ka DITO" (come HERE) - as an adverb "hindi ako sangayon DITO" (HERE I must disagree) - as an adverb "NARITO na sila." (HERE they come) - as an adjective "NARITO ako ngayon." (I'm HERE now.) "Narito" can also be replaced by "Nandito" that implies the same meaning. :)

tayo-we or us, tayo-stand up sample sentence= Tayo ay lalakad =We are going to walk Tayo ka. = You stand up this is same sentence with same words = tayo na - lets go ; tayo na - stand up now