Move: WASD
Run: WASD + LeftShift
Jump: Spacebar
Climb: Hold Spacebar + WASD being close to any reachable platform
*You must climb up the middle drawers at the end of the room when the climb tutorial pops up
Push: Hold LeftClick + WASD being close to a wooden crate
It is explained during the game. However, the game is not meant to be played on mobile devices, maybe that's your problem. You need a keyboard and mouse.
Contact me if you have any other problems :)
Thanks for trying the game! I hope you enjoy it <3