Moi non plus (et sans doute pas mal de gens) n'avais pas vu le high five ! Mais bon, ceci dit, les exégètes s'étant penchés sur la question, c'est bien un signe de prière...Amen !
High Five or Prayer | Catholic News Live
There seems to be some confusion about what certain emoji actually mean. Gawker brings us word that a TV station in Philadelphia described the emoji pictured above as being for a "high-five" of two
https://catholicnewslive.com/story/416771
Jeu de briques
Snake
Pacman
Bubble