Kutter

Completely new player here folks... Feel a bit dumb but how do I pick up items? Walked into a building found some tape and a wrench. Walked close, clicked, right clicked... Tab shows them on the left hand side of a window but im unable to drag the to the right hand side (my inventory) I read that your supposed to 'scroll' the mousewheel.. Well that does nothing. I read 'hit 'f'' while over an object... That does nothing. How do I interact with the world? Thanks Kutter

A combination of issues it seems yes. But got it sorted now, thanks guys. Now I just need to figure out what I'm supposed to be doing :)