Hi,
there is a 'Linuxtag' in Tübingen (South-West Germany) on Saturday,
2015-06-13:
http://www.tuebix.org/
I've registered a 'Debian GNU/Linux Jessie Install Party' and a
talk:
<URL:http://www.tuebix.org/programm/mundt_nachbauer-jessie_party/>
<URL:http://www.tuebix.org/programm/mundt-apt_install/>
Everybody is welcome to join, chat, install and/or help installing.
Best regards,
Andi