Royden: Howdy, trust you are well. May I pose a question of Polish taxi etiquette?
Ed: Hi! Yeah, absolutely. Although I wouldn't say it differs much from the international one.
Royden: Ah, perhaps. 
Royden: In SA we have a tipping culture.  
Royden: So, in Poland one just pays the fare, no tip?
Ed: Feel free to give the driver the tip, of course it will make no harm. About 10% is enough, I believe.
Royden: Cool, thanks.
Royden: See you on Friday?  Are you going?
Ed: Yes, definitely! I'm really looking forward to meeting you in person!
Royden: Oh dear :-)
Royden: It will be great to put faces to typing :-)
Ed: Exactly! :)
Ed: Should you have any questions before the trip, just let us no. But no worries, it's a civilised country. We have electricity, running water and even the Internet connection ;) 
Royden: Truly, I know. I have a great deal of respect for Poland.  
Royden: I was young when Poles decided to change things, despite what others thought - certain famous shipyards and workers etc.
Royden: Actually, your internet seems spotty today, as you appear to be typing for ages :-)
Royden: Must be off - cheers for now
Ed: Take care and see you soon!
Royden is asking Ed for tips before he visits Poland and they meet in person on Friday. Ed finds a 10% tip suitable for taxi drivers in Poland.