Something like this has also happened to me when in holiday in Spain. I was looking around nice buildings open to the public, and entered one that I later found out happened to be a university. Walking around I entered one very well decorated hall, also because it started to rain and had to wait somewhere until it passed. To my horror, more people started coming in as well and I realized I was in for some sort of book or thesis presentation on the subject of Spanish language on the Balearic islands.
I barely speak Castilian Spanish (the more common one) and it was instead in Catalan Spanish, so I didn't understand a word, but stayed for the 1-2 hours it took, clapped, and skipped the handshakes/signing part of it.
I barely speak Castilian Spanish (the more common one) and it was instead in Catalan Spanish, so I didn't understand a word, but stayed for the 1-2 hours it took, clapped, and skipped the handshakes/signing part of it.