<<"Thanks for ur advices! I will buy the tickets over the counter then!">>
That will work, and English is a required language for the counter staff, but if there is a line of people , sometimes it is a slow process.
I advise you to learn to use the ticket machines. Buying a ticket for a train journey is very simple, and you can practice (as long as there is no one waiting behind you) going through the steps presented in the menus on the screen all the way to the last step, which is when you pay. When you get to that screen, you can cancel the whole transaction you have begun. You can also back up to a prior step. The machine has no feelings to get annoyed at you. ;-)
You can also practice at an online simulator -
In most machines you can pay with a credit card or cash. Most machines accept Swiss paper money and Swiss coins, and give coins in return for exact change. Some only accept credit cards.
I believe that they cannot be used to reserve a seat....I certainly don't know how! And, I also would go to the counter for a ticket for a journey that goes outside of Switzerland. If you do reserve a seat on special trains such as the Golden Pass train panoramic cars, you should do that in advance, or you may end up in the regular cars.
www.myswissalps.com/tr ain/reservations/howto use
Local Transit Networks in Large Cities -
I suspect that you might not need this particular information.
The only aspect of using the machines that still gives me an occasional problem is buying specialized "city tickets" or "day tickets" for a city such as Zürich, including nearby communities within the regional bus/tram/train ticket network. For example, Zürich Airport is included in one zone of the regional network, and you can go by train or tram....or bus, with the same ZVV ticket for the correct zones.. There are several fare zones, and many possible choices. I usually have to cancel the process partway through at least once although I am usually able to do what I need. In some of the larger cities, the transit system tickets are for sale on specially marked ticket machines that sell regular train tickets, as well as the machines at each tram or bus stop.. In Zürich, for example, they have a "ZVV"symbol on them, which stands for Zürich Verkehrs Verein - the Zurich Transportation Union (company). I have never done it in Montreux, and cities often have slightly different systems. In Zürich, you buy a ticket before you get on a bus or tram, and inspectors check on various trams at random. There is no conductor checking your ticket when you get on or off. There are large fines if you are caught without a valid ticket.......