Using menus on a Mac

I can’t find a way of using the standard keyboard accelerators when I’m running LibreOffice on a Mac (Lion). Any tips?

The documentation gives mac specific keyboard shortcuts and hints http://wiki.documentfoundation.org/images/f/fd/0115GS3-KeyboardShortcuts.pdf
All the ones I use work as advertised (LO 3.5.3 OSX 10.7)

What specific difficulties are you having?