Public speaking..... arrggh!

I'm a talker. I'll talk your ear off but.... not in front of a crowd. I am scared to death of getting up in front of a group.... I've done it but...I get sooooo nervous.

Necessary evil with a book coming out in July - GIRL Z: My Life as a Teenage Zombie

But I woke up this morning with some great ideas for  a powerpoint... easier to talk when people's eyes are engaged on pix and not on you, right?

But...it's still scary...

So - how do you tackle speaking to a group? What's your best - worst moment?