An open palm on which you stepped,

And raised, up silently I crept.

Even empty I will not stop,

Up up away, right to the top.

Do as they say in USA, glass shack;

I will be back.

'What's with the US reference?'
'Well, some things are just done a little different in the US to us. For one thing, they capitalise.'
'Ha, good one.'
'Thanks, I wonder how many people will get it?'

Riddle Answer A Lift

Riddle Explanation
do as they say in USA, glass shack - Charlie and the Great Glass Elevator is a children’s book by British author Roald Dahl, though the title uses the American English term elevator.

I will be back - the elevator elevates, much like the Terminator terminates.