Description: Hold “Left Shift” while hovering pointer over a tile.
Open Door: Hit “y” or “Y”button and select adjacent Door Tile.
Drinking Water: When near water, hit “u” button.
Replenish Stamina: Hit “r” button.
Replenish Fatigue: Hit the “R” button or select the “Tent” icon above quickslot bar.
Beds: When near a bed, the icon for bed will appear in the “Items Nearby” window/pop-up. You will replenish Health/Stamina/Fatigue very quickly, instead of without a bed.
Butchering: Keep an eye on the quickslot bar, above it will show additional buttons when your PC will be able to do certain actions, like butchering. Go near a corpse and look for the button to appear. I’m not sure where butchered items in your inventory go, they are like socks in the wash.
Home base: You don’t start in a home base, it may be a farmers hut, an Inn, a gnomes cellar, bar cave, etc. Find a place you can slowly clear out the surrounding mobs. Quickly find a source of water, stones and lastly food. The map is static, and stays the same, I believe, so find an area you can handle and make your way toward that position as soon as possible, to set up a home base.
Spoiler (semi): There are very, very advantageous places to set up your home base. Water source and some crafting tables/furnishings is a plus.