We are holding two bf tickets to Lisbon leaving this friday coming back the 29th.

I saw that the plane was completely full. We can spend however an extra day in Lisbon and was wondering what CO gives you for giving up your seat. Are there any stategies that we should follow that would increase this amount?

I never flew CO before.

Also, I am not sure where my miles should go. Do you get EQM with Northwest Worldperks if you fly on a CO flight ( I booked a true CO flight, no codeshare ) ? The same for KLM: could I get EQM on the FD program when flying CO ?