zeffyr: Wow, I'm glad you did it, awalterj! :-) I'm also happy that you enjoyed it. Now I'm ashamed that I live only 300kms from GOG's headquarters and I don't have such t-shirt ;-)
And that's a pity that your friends chose a club with 'selection' at the entrance, avoid them if possible (clubs, not friends :P) :-)
It's a pity I didn't stay even longer in Poland in which case I would have come to meet you in Poznan but on this trip all I managed was Krakow, Warsaw, a small village near Ostrowite near Rypin (I forgot the name of the village, it's super tiny) and Malbork so this was a North/South axis kinda trip. Didn't even make it to Gdansk or Gdynia so I think Poland hasn't yet seen the last of me.
About the club, I didn't know it was one of them fancy places. Just had the address from my local friend so I grabbed a taxi and went there in the evening after doing my work.
awalterj: After getting something to eat at a fancy looking place we went to this club (Sireny Spiew) but the security wouldn't let me in, despite me wearing the neat GOG shirt and bringing very nice looking company. I asked the guy if my personality wasn't enough and he said that if I had nicer shoes and maybe at least some Jeans or something it would be fine. What is this, people care about clothing even after high school?
The-Business: That's also the standard here: Long pants and shirts with sleeves are a must and sneakers or decomposing sport shoes are verboten in the better locations.
It's ok, I'm actually glad I wasn't let in because I was quite tired after a long day of painting and I don't like going to clubs where it's too loud to talk, too dark to draw and where people dance individually the retarded modern way instead of nice traditional couple dancing. Now that I think of it, if there were any places where you can rent traditional Polish folk costumes and dance in that in pairs to traditional Polish music, I'd be way more inclined to participate.
In the meantime, I'll be wearing my trekking shoes/pants because that's what I feel comfortable in.
EDIT: ...OR I might dress like this, the real Polish way: