I added... a lot.
for starters, when cards reappear, they smoothly fade in.
I also programmed a switch statement so that there could be a progression of cards (like you're actually talking/interacting with something)
the switch statement also changes the card sprite (artwork will be used in the future), as well as the question text displayed.
next steps are to add some booleans, "win conditions", and a dialogue tree-esque system so that the conversation adapts to what is said.