Interaction

How I can interact with a door ? Like when im close to the door and I press E or some key and the door open, not a trigger that you just reach there and it open, i want to know how to interact. And how can I drag something like a knife like if the player is holding it.
Thanks

Here is a full video tutorial! [Part 24]-Interaction Pt 2 Picking up things- How to make an advanced FPS game - Unreal Engine 4 - YouTube