when is it a compliment?

I was sharpening pencils in my classroom this morning when a student came up behind me. (Normal student behavior- to be a teacher you have to have minimal personal space!) But the kicker was when this student paid me a compliment...I think.

"MMm. Miss HPLuvr," the student said sniffing. I pause my pencil sharpening and look at the student, "You smell good!"

"Thanks! Thats nice of you to say." My pencil sharpening continues.

Then I hear, "Just like my grandma."

you see...Compliment...I think.