I am not five anymore

Tip: don't use the words "interesteing" or "different" when you cannot otherwise compliment something. This works for children, they don't clue in. Adults know this trick, so really it is a pretty clear cut way of saying "I don't really like it, but I think that I am really cunning and will use these words so you do not take offence". Sorry, but use your noodle, all adults know this technique, it is actually insulting. I think it is a better idea to fib and say, "That's neat", no details, just a vague compliment.