I want to sell thing to NPC

[BaronBamBam]

But how do I do that?

[RoyalAzureStone]

If you go to your main inventory and click on the item you want to sell there should be an option to sell it on the menu that pops-up

[HauntingEchoes]

I assume you mean you want to sell items back to the stores?

If so you now do that from your inventory directly. Click the item you want to sell, and then click the sell button. That will sell the item back for half the store price.

[BaronBamBam]

RoyalAzureStone

If you go to your main inventory and click on the item you want to sell there should be an option to sell it on the menu that pops-up

I see! Thank you ! C: