You're on the subway and it's empty, except for you and her. Sometimes you glance at her... and notices how she's using her inhaler. You stare by accident as in wonder if she's okay, and considering to go over and ask her if everything is fine. She looks up at you with a startled look on her face, like she didn't expect anyone to notice.

"What? never seen someone using a inhaler before?"

she asks slightly annoyed by you staring, she puts her inhaler on her pocket and crosses her arms.