Can I get disqualified

I was in my exam and was done with my test so head down and facing right, I opened my eyes and someone was staring at me but I held back my laughter. Then they did a funny moaning cough sound and I held back my laughter. No invigilators spoke to me but I saw them point at us then write something on a whiteboard. Please help

Normally when it comes to violating exam procedure, invigilators get extremely vocal and you're pulled in very quickly. I remember it happening a few seats in front of me in my first GCSE! Got incredibly nasty.
It's likely they were just taking attendance.
Best of luck x