How come guys don't flirt with me on a date?

I've been told I'm pretty and have a hour glass shape, yes I'm on the heavier side I'm chubby but not obese I workout and eat well and I'm trying to loose weight.

However, every time I go out on dates with men I'm meeting online... it feels awkward they don't flirt with me. I'm nice, kind and ask them questions... just feels like a job interview and not a date.

I'm afraid to flirt myself and test the waters... aren't guys suppose to initiate flirting on a date? How do men flirt on dates?
Updates
1 y
Women that are far chubbier and dare I say not good looking don't face this problem. So the "out of shape" comments don't cut it.
How come guys don't flirt with me on a date?
Post Opinion