Hi,

Mr. Banks: Just a moment, Mary Poppins. What is the meaning of this outrage?
Mary Poppins: I beg your pardon?
Mr. Banks: Will you be good enough to explain all this?
Mary Poppins: First of all I would like to make one thing quite clear.
Mr. Banks: Yes?
Mary Poppins: I never explain anything.

*/

Hi,

A simple question ('' )(.. )( ..)( '')

When someone wants to open an umbrella, do you add 'up' after 'open'? You can, but you don't have to. Normally, we don't.

"You can open up the umbrella!"

I also heard someone saying " You can put up the umbrella!" Yes, here we need to say 'up'.

Which one is native way, I just wonder?

I am sometimes confused whether I have to add adverbs like 'up, down etc' Yes, you're right, it is confusing. I wish I could offer you a simple answer. However, if you make a mistake with prpeositons, people will still understand your meaning in many cases.  So don't feel discouraged.

Best wishes, Clive

Of course there are regional differences.  Some people open a can of soup; some people open up a can of soup.

You can close up the camp for the winter or you can close down the camp for the winter or you can close the camp for the winter.

You can take down the flag but you wouldn't lower down the flag.  I don't think there's a general rule.

It depends whether or not the verb is "directional," for one thing.  You can raise/increase the volume on you radio, or lower/decrease the volume. Up and down would be redundant.  But when you turn the volume up/down, the up and down are needed.

If the sentence still makes perfect sense without the "up" or "down, " or still means the same thing, chances are you can skip it.