Among several other meanings, かな is usually translated as "I wonder", but what does it mean in the following conversation?
A: 「僕はジャズが大好き!君は?」
B: 「私もジャズが好きかな。」
Is the speaker uncertain about whether she likes Jazz or not? Or is it a polite way of saying something on the lines of, e.g, あまり好きじゃない, 嫌いじゃない, and so on?