Hints: When people have an open door, they generally want Asda Story Gold you to come inside to deal with them.  Be nice and don't forget there is a person on the other end too!

When people have the door locked, they usually want you to just deal them. These people do not want to haggle on the price and just want to sell the item. 

Discount Merchants: Discount merchants are likely the first merchants you will encounter in the game. Discount merchants hang out in kit shops and weapon shops and will discount the merchandise for you.

Discounters will generally have a chat up with an open chat room for about 3-5 people. They do this so they can handle only a few customers at a time. They are not trying to be rude to you; they are trying to be respectful to the few people that can handle dealing with at once.

Discounters will have chats up going from 10% DC to 20% DC. This means they will take off that percent from the price of the item.

If you do not trust their judgment, take your calculator out and check the item before you buy it. If you are dealing at 20% off, you take the price of the item times 8 to get the discounted price.