When Neo got brought out of the Matrix and into the real world, did they kill him with that silver thing that went inside his body? Or was that just added effects for the viewer?
I believe that the purpose of the liquid mirror was to illustrate that the rules of physics in the matrix can be broken.
Neo doesn't die until he got shot; you might recall that the oracle told him he might be waiting for his next life.
Where Trinity's pants leather or plastic?
Neither. They were that acrylic stuff.
I thought you had to be killed to get brought into the real world? Free your mind type shit?
No; if you die in the matrix, you die in the real world. "The body can not live without the mind."