When Sydney's getting to know her characters, she doesn't take any shortcuts. In fact, Sydney writes (literal) novels on every character she plays. "I have 100-page journals on each of my characters... I literally build from the hospital, from the day they're born and the daycare that they go to," she told Who What Wear.
Sydney said this much research helps her play a character without having to wonder what they might do or say in any situation. "The reason we sit a certain way or we look at a person a certain way, it all comes from some memory from our past that we may not be able to put our finger on. But it's what made us who we are today," she said.