Always put up junk items, not always the same ones, tranfer it on irregular times and transfer various amounts. Basically make sure they can't see some kind of pattern in it. Btw, another way of tranferring is by staking it.
A few, until I realised there were guides out there on the world wide web.
My english was pretty bad though since I was still really young when I started playing rs, luckily a friend of mine suggested a dutch site.
This