Definitely:
Playing some CSGO together and having fun
messing around on custom maps/fun gamemodes/whatever
Practicing and getting better
Playing competitive
Focusing on Mirage - repetition and practice - we can get good at this map

Potentially (Based on interest):
Developing and practicing strats - starting with Mirage
Start with watching No ♥♥♥♥♥♥♥♥ Mirage Tips by Cruxal on YouTube, https://www.youtube.com/watch?v=PMIjDEpZ_cw
Signing up as a team for FaceIt (Free service where you can play games and tournaments against other teams and there are a lot less hackers)
Entering some tournements through FaceIt