"I am this man."
Translation:Я этот мужчина.
@VinuriR: I could be wrong but I believe it depends a bit on context since это either means "this is" when used as an "indeclinable" pronoun, or it means "this" when used as a "demonstrative" pronoun with neuter nouns (i.e. окно). этот is a demonstrative pronoun always means "this" and must be used with masculine objects/nouns. This is the difference between saying "This is a new red house" vs "This red house is new".