I find the best way to approach a site agent on a job is to ask them a question on the first day that only someone with experience would know and when you start a job theres always a question or two,site agents i am dealing with at the moment are one ex-plasterer,one ex multi-skilled finisher and an ex window fitter,basically people who have no idea about our trade.
The ex plasterer site agent wanted to know why i left tiles out on a boxing in around a soil stack and didnt get the fact that the joiner/boarder had basically cut a u-shape out of the board and there was nothing to fix my tiles to under the stack and still didnt get it after i told him
The ex plasterer site agent wanted to know why i left tiles out on a boxing in around a soil stack and didnt get the fact that the joiner/boarder had basically cut a u-shape out of the board and there was nothing to fix my tiles to under the stack and still didnt get it after i told him