If you didnt know before you can crouch with F and interact with E

Additions 

• Inventory system you can hold up to 7 unique items but there's only 2 at this moment adn drop items with BackSpace
• Items
  "Key" Spawns in locked rooms and can be used to unlock said doors (yellow block model)
  "Lock Pick" Spawns in drawers and can be used to unlock locked doors with a max stack size of 2 (orange block model)
• 1 New Room