I don't think you can tell. Dd2 came out in 2012 shrugging and looking negative.
She did fine.
DS2 has just done the 11+, he came out smiling before telling me he did no comprehension and guessed all vr. When I saw him smiling I thought it must have been easy, this was just his way of being pleased to see me because it meant it was all over.
I keep reading about dc who found the test "easy". I hope this just means easier than expected!
As north dad said, it's not just about your dd but everyone else.
As for my ds' friends who said it was "easy", upon further discussion it appears they all struggled in different areas.
Your dd is obviously a bright girl, try not to worry. I'd like to say time will fly until results, but we all know that isn't true.