Was she flirting or joking?

[kingdex]

Ran into this chick a couple times in the isles of a grocery store, and as I was standing in line checking out, I felt someone standing real close behind be and I turned around and it was her, and she's like "Ya I'm following you.." "Stalker". Then after I paid and was leaving she says "Ok then see you at your place." and laughed a little. I said "Sounds fun." but kept walking because it was super awkward right in front of everyone.