What does it mean to have an innocent/sweet face?

SmileGirl95
Yesterday one of my friends said I'm likely to attract stalkers because I have an innocent face haha. And today I was at an event with another friend and I met a nice girl there who my friend knew. And as soon as the girl saw me she said I was really pretty and then hugged me a minute later because she thought I was cute and had a sweet face. Does having an innocent face mean you look young? Because the girl thought I was older than I am and a lot of people have said I look early twenties even though I'm 17 and I hardly wear makeup. What does having an innocent or sweet face mean?
What does it mean to have an innocent/sweet face?
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