who knows the meaning of pick it up
Hi and welcome to Using English.
How was it used? Was their something on the floor? Clothing at the dry cleaners? A musican who wanted to go faster?
You will soon learn we always ask for context when we try to answer these questions.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.