You go to market every few hours.
You see dedesiregar on market list or not.
If you see her on top of the list of the cache you want to sell, you match her price. If you don't see her chilling on top, you wait.
Why? Coz she only sells when price is high enough. N she will be top of list by then at all cost, unless her buddy pierccyy wants the top spot. They do the dance a lot.
Then you check if she lists $1 higher than piercyy or way too high. If $1 higher, you sell. If way way higher, it means price hasn't reached peak yet and you just wait.
Thats how some cache muggers n traders sell too
This is not an adv. I am not posting about trading. Just how to sell.