is there a cool kids way of selling/buying osrs with forum cheese
because i was a naughty boy and caught a warning for rwt

Not really
I would suggest if you already have a warning to stop buying/selling.
You not only risk losing your gp / account. But aswell the person you trade with risk gettin banned etc.
Not worth the risk im my opinion

i see, thank you

I usually include items in my trades and typically trade with higher level accounts.

Don't speak or so anything, and just bingo bongo

Trust no1