It always looks like I'm frowning?

You know when the teacher's talking, and you're just sitting there? Yeah, well, apparently when I'm bored in that a situation like that, everything thinks I'm depressed because apparently if I don't put any expression on my face, it looks like I'm seriously depressed!! Apparently,my mouth... show more You know when the teacher's talking, and you're just sitting there? Yeah, well, apparently when I'm bored in that a situation like that, everything thinks I'm depressed because apparently if I don't put any expression on my face, it looks like I'm seriously depressed!! Apparently,my mouth starts frowning more than normal, but I don't even notice and I can't really help it! I try widening my eyes and trying to put on an expression, but I'd look stupid just randomly smiling! What do I do, and why does it always look like I'm frowning?
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