Topic: Security Central / Is an inmate about to fight?

I’m new to this forum, and I’m loving the topics that I’m finding, and all the information that I’m getting for questions I’ve been wondering; however, there’s one that I couldn’t find, even on other forums. I’ve been working at the county jail for about a month and a half now (absolutely loving the experience, law enforcement has been my dream since I was a young child), and I was wondering what you guys look for as signs that an inmate is about to, or is looking to fight?
My sergeant told me a few tips, such as removing extra clothes, or using an inmate-crafted rope to tie their shoes on (all inmates here basically wear flip flops, unless they are workers). Other officers have told me to also watch their hands, such as if they keep clenching and unclenching their fists. Any other tips and signs are greatly appreciated!