WALK off any ledge or platform and hold jump/space to activate Angelic Descent. Keep holding jump/space even after touching the ground, and you will do a ‘jump’. That’s the bunnyhop!
Consider the solution to be:
1- Sit emote
If you’re still stuck after attempting the possible solutions above, consider finding the map guide video in the Mercy Parkour Code Spreadsheet (Mercy Parkour Codes) to see the intended solution or join the Mercy Parkour Discord (Mercy Parkour Server) to ask for help.