“Possibly” was the sh!t test. You passed. Well played. Most guys would just blow her up with a string of butthurt/needy texts.
Yeah go meet her for drinks. Go to enjoy a drink and a night out. Not her company. Be totally, completely, 100% outcome dependent. If you sit at the bar together, sit with both shoulders square to the bar, and look sideways at her. If the conversation heads in the right direction you can warm your body language up a bit.
Don’t say it, and I wouldn’t try to talk up other girls you’re seeing (if you don’t do this correctly then you risk coming off as bragging and insecure).
Communicate with your body. If someone calls or texts, interrupt her by pulling your phone out and look at briefly before putting it back.
When you speak, or listen, never lean in closer. Tell her to speak up if you didn’t catch what she said. Don’t shift your position for her until she’s earned it.
Your posture and body language at first should be pretty in your face “I don’t give a fvck about you, I’m here to enjoy my drink.”
If she warms up, reciprocate. But this date is already more in her hands than yours. Take some power back. Don’t come off as eager with this one.