A pair of china dogs are back-to-back in a master shot (overall wide view), but when the camera moves in for closeups, the dogs are face-to-face.
While Tom Lee (Class of 1946) is still in school, Laura Reynolds drives a 1950 Dodge.
At 106:55 minutes when Tom stands up to speak you can see the reflection of the boom mic on the wall behind him.
After Tom's roommate Al hangs up with his father, he goes downstairs to tell Ms. Reynolds he will be moving out. The shadow of the moving boom mic is visible between Ms. Reynold's door and the pay phone in the hall.