This exercises your sight and sound senses and your mouth muscles, so you benefit three ways. If your group needs to work on memorization of facts, drill one another with clue words. A study group or partner cannot take the place of effective individual study. Study groups or partners can drill each other, help each other practice new skills, clarify difficult points, present new viewpoints on the material, or pose questions for each other. Mnemonics can be useful, but if you create too many of them, you have the problem of trying to memorize the mnemonics rather than the information they represent.
Many people fail to make the best use of such help.
One handy form of external memory is the deliberately misplaced object. Put a familiar object in an unfamiliar place where you cannot miss seeing it. When you see it, it will serve as a reminder to you and help you recall what you wanted to remember. Reviewing One of the oldest facts known about memory is that the more times you review your notes by testing yourself, the longer you will remember the information. Even a single review after you think you know it well can dramatically increase the length of time over which you can remember something.