How do I flirt back so that she feels comfortable and encouraged to open up more?

Anonymous

I'm dating an introverted girl who rarely opens up.
On very few occasions she did, but I missed the chances to give back a smart retort and instead just laughed sheepishly... I feel dumb and wish to improve.

Scenario 1. Her: I'm stuck at work today, I'll reply you later. Be a good boy, have your dinner and sleep early ok?

Scenario 2. Me: You should wear red for the new year.
Her: Don't wanna :P That's so corny!

Scenario 3. Me: It's 3am! Don't you have work tomorrow?
Her: Oh no! Why do I like talking to you so much? It's all your fault! :P

How should I flirt or banter back?

How do I flirt back so that she feels comfortable and encouraged to open up more?
3 Opinion