How do I flirt back to this cute gas station cashier?

[evoxgrl]

I always stop to get gas and stuff at this esso station, and I always see this really cute guy.
He's been a little flirty towards me everytime I come in. Whenever he checks my ID he's like "oh I don't know, this one looks like a fake to me" and jokes about it, and then he will tell me to "stay out of trouble" when I leave. He's so cute, but I'm not sure how to flirt back. My flirting skills are a little bit rusty since my recent breakup. Help!

[hefriend]

smiling and eye contact is important, from there on I'd just stick to playful banter until one of you musters up the courage to ask the other out or smth. just small replies like "I can't make any promises 😉" and stuff like that.

[GinaChapis]

Just write down your number on a piece of paper and give it to him. If he likes you too he will call you or text you.

[DBuff]

Where a skirt and ask him where he hangs out after work