Nobody can read the future, but you can often make accurate assumptions about things that will happen.
For example, if you observe when somebody gets home every day, you can make an educated guess about the moment they will arrive. You can then say to her "somebody is about to park their car outside" and moments later a neighbor could pull up.
Just make educated guesses on scenarios based on logic and observation. Or you can stage something to happen, by leaving 'traps' around. For example, going to her desk and balancing the keyboard in a way so when the keyboard tray is pulled, the wire tugs and it falls. You could tell her in advance that she is "going to be clumsy and drop something".
I know its not the most powerful "prediction" but if you can set the seed of doubt, you can convince her later lol.
