Tap Who can share with you, then enable Everyone and check the Only for 10 minutes box. It means Quick Share actions can be initiated with unknown contacts, but the sharing will be turned off after 10 minutes. This should be ample time for you to share a contact card.
Unlike NameDrop, there’s no magic touch-your-phones-together action. You need to head into your Contacts app: On Pixels, tap your account picture (top right), then Contacts settings, Your info, the three dots, and then Share. On Galaxy phones, just tap your contact at the top of the list, then Share. You’ll then see Quick Share appear as one of the options, and the other person’s Android device should be detected.
Cross-Platform Sharing
(David Nield)
If you’re trying to get an iPhone working with an Android phone, you’ll notice that AirDrop…