I use "Whole Brain Teaching" techniques for classroom mangement which has been extremely successful for me in the past.
Rule #1 Follow directions quickely
Rule #2 Raise your hand for permission to speak
Rule #3 Raise your hand for permission to leave your seat
Rule #4 Make smart choices
Rule #5 Keep your dear learning community Happy!
There are hand motions that go with each of the classroom rules and we review them often. https://wholebrainteaching.com/intermediate/five-classroom-rules/