Please slide the door closed.
Slide the door open.
It is more polite to say slide the door open.
But that last one seems a bit peculiar.
Please slide the door open.
Please slide the door to let some fresh air in.
It seems like i am trying to say.
Never leave the glass door unattended.
Then lift the door up and out of the track laying it down carefully across two sawhorses.
Please open the door to let some fresh air in.
Which made me wonder if open is the verb and slide is the adverb.