judging by
Juzgando por el aspecto del cielo, mañana podríamos tener nieve.
Judging by the look of the sky, we could have snow tomorrow.
Juzgando por su expresión, ella se veía preocupada.
Judging by her expression, she looked worried.
Juzgando por la expresión de su cara, parece preocupada.
Judging by her facial expression, she seems worried.
Juzgando por el tono de tu voz, parece que no te fué muy bien.
Judging by the tone of your voice, it seems you didn't do very well.
— El hombre sin pasado (2010)
Juzgando por los tuyos, diría que eres amable.
Judging by yours, I'd say you're nice.