[gus_massa]

[spoiler alert?] You must press the shift button an then the arrow to the left or right. I got confused too, the drawing is not very clear. It is in the help, so I think it is fair to tell that.

[Cyphase]

For me, the help says that Shift is to Interact, and E/Enter are for Run. When I walk by an interact-able entity, an E button floats above it.