Hand heart

[1] However, in recent years, the practice has evolved to include people using the index and middle fingers to form the heart, as opposed to using the entire hand.

Often, two people will each form half of a heart, conjoining the two as a sign of affection.

[2] The upside down hand heart gesture was noted in art in 1989, when Italian artist Maurizio Cattelan created an art image of the gesture as his first artwork named Family Syntax.

[4] This gesture was added to Unicode 14.0 and Emoji 14.0 in 2021 with code point U+1FAF6 🫶 HEART HANDS.

[5] Google filed a patent in July 2011 that allowed Google Glass users to use the hand heart in front of an object to cause the gadget to automatically recognise the object, take a picture, and send it to social networks as a "liked" image.

Hand heart
Two friends make a "hand heart"
South Korean singer Chuu showing a hand heart in her fan signing event