Originally Posted by
jaitiruak
Thanks for your reply, Skybuck!
Is first class usually really empty? For the longest leg of our trip, I wouldn't mind paying extra for first, especially if it gives us a really good chance of sitting next to each other (or at least across from each other in the one-seat side)
And also, thank you for all those signs to look out for, I never would have known what they meant. Typing those into my phone as we speak

First class is usually a lot less crowded than 2nd class with the exception of typical "consultant routes" (e.g. Frankfurt - Munich on Monday morning), so your chances of getting two adjacent seats there are higher. In addition cheaper prepaid rates are much easier to get for first class than for second class.