「０」 can also be used in place of “I” and “you” very frequently (depending on context)
「０」 is also more commonly used than 「彼」 and 「彼女」
using 「あなた」 is not recommended (considered more rude than not using the 「です」 and 「ます」 decorators)
ex: 「田中さんとその犬」 means “Tanaka-san and his dog”
this 「その犬」 does not mean “that dog”, it means “a dog related to Tanaka-san”
constructions like 「てくれる」 and 「てやる」 can give information about what people are doing without explicitly using their names or pronouns because the actions happen in a certain “direction”