Part of Streepâs encodings lay in an unquenchable curiosity about what it would be like to be a specific individual within a particular story and then internalizing that character. âActing is my way of investigating human nature,â she explained. Itâs an ethos she carried across the decades, as Streep succinctly put it, âIâve always been curious to know what itâs like to be you.â As she continued to extend out into her 60s, Streep kept the curiosity motor running full bore, describing it as the key ingredient in the secret sauce that âmost animates my work,â adding, âIâm really interested.