There's all kinds of things that could be a factor. You may have caught her at a bad time, she may not get your
humor or think it's corny, she may be blowing you off, or she may just be a lame-ass chick.
Pretty much from the get-go, she should know
HOW you interact, though. If she doesn't know where you're coming from with your
humor, then you may get weird reactions cuz she's not 'comfortable' with you yet.
But most of the time chicks will play around, so she may just be up tight. If that's the case you can be like " I'm messing with ya....Why so Seeerrriiiioooouuussss!?" Then stack forward, DHV, qualify, force frame, tease, be a dick, scan for logistics, and throw in some comfort elements.