Hi,
I read this gem on the Swissinfo site:
http://writeon.swissinfo.ch/?p=98#more-98
The blog entry concerns the authors experiences of socialising with the Swiss.
No doubt there is a danger of generalisations here; however, I do find there are some Swiss I speak English all the time to, and others I speak German all the time to - regardless of their ability in English.
I wonder what others experience.
Rgds,
Nick