When he heard that she was leaving he opened his door and smiled at her. "May I talk to you in my office?" He said opening the door.
Once she came inside he smiled at her. "How was everything with work?" He said deciding to drag it out a bit. Or maybe he should ask right away.
"Okay I want to ask something. Would you like to go to dinner with me? If you want you can bring your daughter. I overheard while walking past the door and listened to you."