PROBLEM WITH MEMORY STICK

I have a problem with memory stick. I am a newbie and most probably just do not understand simple concepts about using a MAC. About different users. About where and how files are stored.

I have tried to look in the manuals and user guides for operating a MAC computers, but did not find the the explanation there for my issue.

I have bought a memory stick couple of days ago.

Seems like it is good memory stick.

But…..

The problem is I have set up a 2nd user

So I have now on my MacBookAir myself (Grigory)

          and  2nd user (RIMMA).

So, I save a file into empty memory stick. Does not matter what kind of file. For simplicity it is just a simple text file. Type  a text into this file. --->“Hello from Grigory”

Shut down the computer

Bring it up again as Grigory

Look at the file in Memory stick. 

It still has has the same text  ——> “Hello from Grigory”

Shut down computer

Now I bring it up again but now as 2nd user (RIMMA)

Look at the file in Memory stick. 

It does not have this file there with text   ——> “Hello from Grigory”

It shows empty memory stick with no files there????

Then I save another text file into this Memory stick with another text ——> “Hello from Rimma”  

Shut down computer

Bring computer up again as Grigory

Look at the file in Memory stick. 

It should have a message ——> “Hello from Rimma”  

But instead it has the only message  that I have  put there ——> “Hello from Grigory”

and no other files???????

What is going on? what do i do wrong?

Thanks a lot for help. Any feedback is appreciated very much.

Grigory

HOW TO DO Grigory