Answer:
The inference that can be made about Millicent from the way she is characterized indirectly is that Millicent has not always been popular.
Step-by-step explanation:
The excerpt of "Initiation" by Sylvia Plath shows how Millicent imagines the following day events and it is the description of a popular, well known, and highly appreciated person among people which helps us make the inference that her life was quite different from that, then she was not a popular girl at all.