I was lucky enough to have quite a few friends on my ncs wave, however, i hardly spoke to any of them!!! none of them were in my team and i spent so much time talking to everyone else that i didn’t know (they did too) that it was like they weren’t there at all!
they do so many team activities and team buildings and you should get to meet your team and the other people on your wave before you go which will help you all i think
good luck and i hope you have fun! it was honestly the best time of my life