Most Helpful Girl
Show you are friendly whIle he's scanning your items say,
Then says , "how's it going?".
When your items are bagged give him a paper with your name and number.
Smile and say , "call me sometime , I'd love to get to know you better" and then leave.
This is the best way when someone is in the job.
You are not interfering with them doing their work or providing business with others.
You are quick , direct and discrete.3