I'm a total chicken. I'd hope they tell me.
I'd prob flirt with them, see of they flirt back and of they did I'd tell them I was interested
That's one way - subtle.
i would hope they tell me
It depends on what kind of self-esteem day I'm having. If I've got a bit of confidence, I'll tell them. More often I wait.
Take a risk and tell the person. A potential relationship may never be if both procrastinates by never letting the other person know how they feel.