...but it's no good just saying 'Cessna' or 'Piper'. We had a Cessna 150 and a Cessna 303 in the circuit a while ago. Then folk are going to take up airwave space detailing their aircraft . Cessna 150 with the pretty green paint scheme and the noseart Golf-XXXX downwind right hand for 27.
If by 'uncontrolled' you mean no radio on the ground and everyone making blind calls, then the clue is in the name 'visual circuit'. You ought to be able to see the difference between a flexwing and a twin and space accordingly.
In all things radio, brevity is King.
TOO