Here, in Turku buses lines are well developed. Using them, you can get to any destination you want and they go pretty often, so it's a really nice way to get somewhere in Turku.
I thought buses are the same regardless of the country, but I made a mistake. Yes, they are all public transport and their task is to get people from station A to station B, but there is a difference in how they do it in different countries. Here I will give you a small comparison of St.Petersburg's buses and Turku's buses.
First of all, here in Turku you need to stop the bus: you need to show a sign that you want to get in. If you don't do it, bus won't stop. In my city buses usually stop themselves where there is a station that is included in their track, so you don't have to stop them. Also, in our buses you don't have to ask to stop - bus stops itself on the right station, but here, in Turku, you should press the button "stop" to make the bus stop at the station you need. I think it's a good feature, so time doesn't waste for unnecessary stops.
Secondly, in my city you can enter the bus any door you like, because inside a bus nearly always there is a conductor who checks tickets. Only if there is no conductor (what is rare thing) you should enter the first door. Here you can enter only the first door and show your ticket to the bus driver. Only if you are with a small kid in a stroller, you can get on the bus through the middle door.
Thirdly, tickets. As a student, I have a student card, which is rather expensive in comparison with that I have at home, so I should put my card to the card reader every time I enter the bus. If you don't have a card, you should buy a ticket, which is valid for 2 hours. In my city the ticket is valid only during a journey and if you want to change a bus, you should buy another one.
Forthly, tables with the approximate time of bus arrival and an app. Nearly every stop has its digital table where you can see when the next bus comes, but, if there is no digital table, you can always watch the driving schedule in the Föli app, which is the app of the transport company or, if you don't have an internet connection, every stop has a table where you can find every bus that stops here and what time it usually passes the station. In my city such digital tables are novelties and only now have started to appear, but we have an app called "Yandex. Transport" where you can find any route you need and know the approximate time of transport arrivals.
Some interesting things. Here bus drivers usually change each other right in the middle of the route! Sometimes it can be slowly enough, but none of the passengers grumble. Also, some of the passengers, leaving the bus, often wave their hands to the driver and say goodbye.
There are a lot of good things about Turku's buses, like request stops, so I would be glad to see some of these features at buses of my city.