You can feel the heart-beat during touching the heart, if your lover or friend also touching the heart.
First of all, please locate DKDK widget to your home screen.
If your friend touched the heart, the heart color will be changed to pink and the notification will come.
Touch the heart and keep touching it.
The heart-beat will be shared to each other, if your lover or friend still touching it.
* The heart-beat also can be shared with 'DKDK' which is installed to SAMSUNG Galaxy Gear S2, S3 !!
* If you can't see a menu, plz touch your friend's name.
"Share your mind to your friend or lover via the heart."