"A royal handshake should consist of two to three pumps, with your palms open and thumbs down,” Grant Harrold, royal expert and director of the Royal School of Etiquette, told Insider.

confessing that he wasn’t sure of the proper royal handshake protocol. “I didn’t know if I was supposed to grab you or not,” Washington joked, adding, “But it’s my pleasure.” ...

Fans witnessed an epic moment featuring Roman Reigns and a top heel during the Men's Royal Rumble match. Reigns offered a handshake to Dominik Mysterio before attacking the young talent.