Just be casual about it. Right now I'm seeing someone from work. A number of months ago, a few of us went bowling one Friday night. Months go by, and I'm single and the girl from work wants to go out with me. She knows I enjoy bowling (have my own ball) so she starts bugging me to take her bowling. Once I finally get over the Ex, I get the nerve to finally take her. Things went from there. I didn't even consider it a date at the time, it was a more casual thing. By the end of the night, however, I invited her to come out with me and my friends for my birthday two days later.
If she hadn't shown some initiative, we'd probably still be flirting at work but nothing more.
"Oh Lord it's hard to be humble, when you're perfect in every way. I can't wait to look in the mirror, cause I get better loking each day. To know me is to love me, I must be a hell of a man. Oh Lord it's hard to be humble, but I'm doing the best that I can." Mac Davis