I was thinking of telling this girl I've been friends with for 10 years I love her. Then I put my hands over my face and say "Don't kill me!".

Is that a good idea?

How old are you both, friends for 10 years? She will not kill you. Definitely say her that you love her but don't push her to make decision. Leave it on her and say to her that whatever her decision will be, it will not affect your friendship. You will respect her thought.

No.

Just be honest with her and don't try to be childish about it. On a side note, I had two female friends that I was friends with for over 10 years. Decided to date both of them. At separate times of course. As they always say, you shouldn't date your friends for the fact that it could ruin your friendship. You will always think that could never happen, but it can. May not always be the case. I have lost both of those girls as friends now and it really is a shame. So, just keep that in mind but good luck in telling her and I hope your results are better than mine were.

I hope you meant that in an amusing way my friend because it was very humorous. If you have been friends for 10 years she may be as amused as I was, yet still keep you in the friend zone.

So maybe your ages and details on the nature of this friendship would help because as others have said your love may cost you a friend.