If any of your contacts have the lightning bolt emoji (⚡) next to their name, that means they are a live contact. This indicates that they also use HiHello and anytime they update the contact information on their own card, we will automatically update the contact details you have on file for them on your Contacts page and vice versa.
If you’ve synced your HiHello Contact List with your phone’s address book, in addition to seeing the lightning bolt emoji (⚡), you may also see the waving hand emoji (👋). Any contact with 👋 next to them means they were imported from your HiHello Contact List.