“The most widely spoken language in the EU (more than 500 million people) is English, which is understood by 51% of all adults (2/3 of the population).” ( Source https://en.wikipedia.org/wiki/Languages_of_the_European_Union ).

It means that by using Your national language instead of English You miss the opportunity to reach over 160 million EU citizens. In my country there are 5 million people. Telling my EU ideas in English instead of Finnish  I can reach 155 million adults – instead of  3,4! OK, I need to use European net channels instead of national channels, too. And not too poor English. But still… worth trying? Click and find out:

https://sites.google.com/site/personaleu/

http://designfactory.aalto.fi/events/133-bisnes-dates/