Where Can I Practice My Notes If I Do Not Have A Keyboard Or A Piano?

Hello.

If you are trying to memorize the names of the white keys and black keys, go to the computer and print out a picture of a keyboard and carry it with you.  You can look at it and memorize the names by doing that.

If you are trying to memorize scales and chords, although you won't get the benefit of "hearing" it, you could use the same "picture" of it to do the same.

Also, you can get toy keyboards at most any toy store for as little as $10 USD.