Elle knew you were bilingual but she'd never heard you speak anything other than English. You'd told her you could speak more than that but had never showed her, well, never intentionally.
She was packing her things in your shared hotel room after a case, while you showered. She heard you singing quietly to yourself, but she couldn't tell what it was. She thought maybe it was a song from your favourite artist that she didn't know, until she realised it wasn't English, it was your native language. She smiled to herself as she slowly opened the bathroom door and tried to be quiet so that she could hear you properly, but ended up kicking a trash can and almost falling flat on her face, causing you to stop and poke your head out of the shower, wondering what the hell that noise was.
"Hi, I was just uh... looking for my hairbrush," she said sheepishly as she slowly straightened up and steadied herself.