How do I put things in my inventory

[Stroldin]

a

[Han_Lin]

you can`t put them , only way is hold R to open inventory and chose the weapon,then press E or Q to put it

[Human]

You either HOLD Q or E. The PC will holster their weapon on either the left or the right side.
Then you HOLD the same button to pull your weapon out of your belt. By pressing R you can view your inventory. Hope that helps.