Social language goals in highschool setting?

I currently am working at a high school for the first time. I’m in my second quarter and I have two social language groups that I struggle with. The students in the groups are all working on initiating, commenting and maintaining conversation, but they really do not engage with each other unless I cue or prompt. I’m new to the setting and I would assume if they’re still working on these goals in high school setting they have already been educated, but how do you guys target this in the high school? Do you have resources that teach the students on conversation maintenance? Do you provide queuing to facilitate conversations? Any advice helpful!!