How should I go about maybe asking this girl out and for her number and should I?

Anonymous
I went to this store to buy some cards. I asked her if she had these type of cards and she said yes so we went on to have a long convo about them. Im a pretty shy guy when it comes to talking to strangers but i had no problem holding a convo with her about this we spoke about for like half an hour until her co worker showed up and i left but she told me to come back and show her what i had gotten. My question is should i go back and show her, how should i ask her if she wants to hang out and her number. That day i went i didn’t ask for name but found it on the recipe. Might she have been in to me and how should I proceed.
How should I go about maybe asking this girl out and for her number and should I?
2 Opinion