Let's apply the memory tricks, or mnemonics, to a couple words which have the same sound (silent): aleph or ayin. You may know that these Hebrew letters are both silent, so the sound associated with them will be contained in the vowel pointing, or niqqud, that appears with the letter. See my various blog postings on vowel mnemonics!
Remember, Aleph א we remember with "alephant" Let's look at a word with an aleph: אברהם AvraHAM, the man's name. How to remember his name begins with aleph and not ayin? Picture Abraham riding atop an alephant (elephant)! Simple as that.
Now a word with ayin: We remember ayin, , as "eye" because that is what the Hebrew word: ayin, means. So, let's look at a word with an ayin: שמע sh'MAH, he heard (or the command form: LISTEN! or HEAR!) How to remember this word ends with ayin? Think back when you were a kid, and how parents said "Look at me when I talk to you!" If someone is looking at you with their eyes, you know they are really listening, not just hearing sounds. When you hear sh'MAH, remember to listen with your eyes.
More to come....