Swing out. At the frontend drive high with your legs and tap them forwards as you let go of the bar. Open your legs and your head comes over to catch.
You can find out more about this trick in my books:
Thanks to Fly'n Fit Trapeze School in Japan for providing a video for this page.
IMAGE CREDIT: Thanks to Emerald City Trapeze Arts. Flyer is Juliette Cimetiere. Thanks to David Treadwell for the photo.