Search Results: flirting with eye contact

Example: some women from work or school makes a of intentional eye contact with a guy (or vice versa) ; when they see him walking down the hall, across the room , etc.

How much of an indicator do you think that is of attraction/flirtation?

This girl works in one of the Warehouses I get product from. First few times I saw her she'd only look at me.
Then one time while I was there, I asked if she could let me out of the building. She started saying I was like a dog and I was wanting to go out. That maybe I should beg. I told her I could be like my dog and just hold onto her leg until she lets me out. She giggled and let me out.
A week later, I saw her again, and I kept catching her glancing at me and smirking. I came back later that day and she acknowledged that I came back. I said it was because I missed her so much. She giggled, and said she'd miss her too. Then she was looking at me as she left and then I left.
I haven't been back since, but I'm pretty sure she's flirting just because she's made full eye contact and she always aims her body at me.
Should I ask her out?