Since the tickets are "electronic", you do not have to print out any tickets.
The only thing you need is the airline reference number (e-ticket number) at check-in.
Check-in can be done either on the airlines website, the airports manual check-in counter, or the airports auto check-in stations.
You will find the reference number / e-ticket number, on your own page "MyBookingPage" with us. (In connection with the booking being made, you have received an e-mail from us, including log in details to this page).
You can also download our app, where you can easily access your e-tickets and flight schedule, in your phone.