๐ซฑ๐ฝโ๐ซฒ๐ฟ represents handshake: medium skin tone, dark skin tone, typically shown as two hands meeting in a firm handshake. The hands face each other with the palms touching and fingers wrapped around the other hand.
This hand gesture mainly means agreement, partnership, or mutual respect. It is commonly used to signify that a deal has been reached, a contract is signed, or a new professional relationship has begun between diverse parties.
You can use this in a chat to say "deal!" after a negotiation or to welcome a new member to a team. It also works well in captions for photos of friends or colleagues to show a solid bond or to simply say "it's a pleasure to meet you."