system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:How can people do accurate voice impersonations, if their voices sound deeper to themselves?
gpt
A lot of impressions have more to do with how someone speaks rather than how they sound. Pay attention to their accent, where they pause, how they emphasize certain words, where they speed up and slow down. 

Now practice. Record yourself. Review. Repeat.