I wouldn't over emphasize it but I would mention it. It just gives them a baseline.

Don't go overly into details or harp on it but say something like
"_____ loves reading, the books he is currently reading are ____, _____, ____"
"___ also loves numbers and enjoys adding them and ___(fill in other math he is doing)" ect.
"He is an eager learner but needs help ___ (fill in: making friends, staying focused, not disrupting ect....)
Then I agree definitely list hobbies too.