Besides passing by my office or apartment there are several other methods to get in contact with me.
You might consider writing picture/post cards, which of course I would very much appreciate, but you can also simply give me a call or write an email.

private LMU MUnich CERN
address xxx xxx xxx
81373 München
Am Coulombwall 1
85748 Garching
Mailbox J04510
1211 Geneva 23
office 339 602/R-013
landline +49 8928914137 +41 227675941
mobile +49 17648199660 +41 764416428

You can also find me on Skype and in some social networks (FacebookGoogle+LinkedIn).