This question was submitted to the Google My Business Help Community Forum.
Details: “how do I engage with customers who visited me”
One easy way to get customers to review after visit your establishment is to share the review form link.
How to get the share the review form link for your Google My Business profile
First, you need to create a short name, you can follow the instructions here.
Then, you go to your Google My Business Account main dashboard and press “Share review form” in the “Get more reviews” box:
Next, you copy the link or use one of the options to share on Facebook, WhatsApp, Twitter or by email.
You can print the copied link into some business cards and give them to customers after purchase.
If you want to know how to gather more genuine customer reviews, please check my Google My Business Training– GMB Empower.
Hope it helps.
You can also check these articles about Google Reviews: