Visible crew/equipment: As the Oracle stands up from the bench, right at the end (after she says "Someday"), you can see a strip of yellow tape on the back of the bench marking the right place for her to sit. (01:54:40)
Visible crew/equipment: In the scene where The Oracle is talking to Trinity and Morpheus, you can see the stage lights in the glasses worn by Morpheus. (00:06:40)
Visible crew/equipment: When Smith and Neo are fighting in the building Smith is knocked to the floor. When he gets up you can see the stage light in his glasses. (01:44:35)
Visible crew/equipment: In the Merovingian's club, when Morpheus knocks the girl back and shoots with her gun you can see the white lights/screens in his glasses. (00:16:10)
Visible crew/equipment: When Neo wakes up in the train station, Sati's dad tells her to, "Leave the poor man in peace." When she runs off, a piece of tape is visible at her feet, showing her where to stand. This is visible in many wide shots, but particularly in this shot.
Answer: In the first film she points this same sign out to Neo and explains that it means "Know Thyself"