I'm a tall, athletic, attractive 26 year old female. I'm new to this organization, and a colleague from an office 2 hours away is working in my office for 2-3 mths. He's 35-40(ish), generally pleasant with everyone, but I sense he's flirting with me. He smiles a lot, jokes and engages in unnecessary kino almost every time he sees me. I can't figure it out, but I want him to ask me out...

Seddit, how do I gauge his interest? What can I do to escalate this? Feel free to ask questions!