From my experience, here's a few to be going on with:
Protracted initial calls, e.g. passing full flight details (and / or irrelevant info) on first transmission on a Freecall.
Failing to standby when asked.
Uncommanded IDENT.
Non-compliance with speed control. Not telling the truth when asked to confirm flying assigned speed.
Transmitting when asked to monitor, e.g. "Monitor (agency) on (channel)"..."Hi (Agency), this is (callsign) monitoring / listening out / standing by on your frequency"
Transmitting more than required when asked to check-in 'callsign only'..."Hi Director (callsign) with you, out of blah blah, descending blah blah, QNH blah blah, coming back to blah blah, field in sight, requesting visual, any chance of the Left.." etc
Not making any reasonable attempt to minimise use of runway, e.g. rolling to the end at taxy speed.