# How to Use Limit Orders
**Liberty DEX Limit Orders** are designed to be simple, gasless, and fully self-custodial. Below is a clear step-by-step guide to help you get started.
### 1. One-Time Setup
Before placing your first order, you need to approve Permit2.
* This allows the protocol to **execute trades on your behalf only when conditions are met**
* Requires a **small gas fee**
* Done **once per token** (not per order)
After this step, you won’t need to approve again for future orders.
### 2. Place Your Order (Gasless)
* Enter:
* Token pair (e.g. ETH → USDC)
* Desired price
* Amount
* Expiry time
* Sign the order with your wallet
Important:
* This is **just a signed message (intent)**
* **No on-chain transaction happens**
* **No gas fee required**
* Your tokens **stay in your wallet**
### Setting Limit Prices with ±% (Buy Low / Sell High)
Liberty DEX makes it easy to define your desired execution price using **quick percentage options** like **±1%, ±5%, ±10%**, or a custom value. These options adjust your order relative to the current market price.
#### **Positive Values (+1%, +5%, +10%) - Better Price**
Selecting a **positive percentage** means you want a **better price than the current market**.
* Your order will **only execute when the market moves in your favor**
**How it works:**
* **Buy orders** → execute when price goes **lower**
* **Sell orders** → execute when price goes **higher**
> Example:\
> Choosing **+10%** means your order will only execute when you receive a price **10% better** than the current market rate.
#### **Negative Values (-1%, -5%, -10%) Faster Execution**
Selecting a **negative percentage** means you accept a **worse price than the current market**.
* Your order will execute **more easily and faster**, since conditions are less strict
**How it works:**
* **Buy orders** → execute even if price goes **higher**
* **Sell orders** → execute even if price goes **lower**
> Example:\
> Choosing **-10%** means your order can execute at a price **10% worse** than the current market rate.
**Best Practices**
* Use **+% values** when you want to:
* Buy low
* Sell high
* Optimize entry/exit price
* Use **-% values** when you want to:
* Increase execution probability
* Exit or enter positions quickly
#### Summary
* **+% = Better price, slower execution**
* **-% = Worse price, faster execution**
This flexible pricing system allows you to **control both your execution price and timing**, depending on your trading strategy.
### 3. While Waiting
While your order is open:
* You remain in **full control of your funds**
* You can:
* Transfer tokens
* Trade elsewhere
* Use them in DeFi
Note:
* If your balance becomes insufficient, the order simply won’t be filled
### 4. When Price is Met
* A **filler** detects that your conditions are satisfied
* The filler executes the trade **on-chain**
* At that moment:
* Tokens are pulled from your wallet
* Trade is completed instantly
Only the **exact required amount** is used\
Execution happens **only when your price is met**
### Key Benefits Recap
* **Self-custody:** funds always stay in your wallet
* **Gasless UX:** no fees for placing or execution
* **Precision:** exact amount, exact conditions
* **Private:** orders are not visible on-chain before execution
* **Flexible:** cancel implicitly by moving funds
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