"So, Hitchcock wouldn't say anything about my work in the movie but, on the other hand, he wouldn't complain, either"

This quote by Kim Novak recommends that Alfred Hitchcock, the director of the movie she remained in, was not especially vocal about her efficiency. He neither applauded nor criticized her work, which might be translated as an indication of indifference. This could be seen as a sign of respect, as Hitchcock was understood for his perfectionism and high requirements. He may have understood her skill and potential, and wanted to give her the area to develop her craft without disturbance. Alternatively, it might be seen as an indication of disinterest, as he might not have actually been impressed with her performance and was not happy to give her any feedback. Whatever the case, it is clear that Hitchcock was not particularly vocal about her work, which might be seen as a sign of respect or disinterest.