There are several methods to place trades on MT4, the 3 most common ways are the following
1. When using MetaTrader 4, select which instrument you would wish to trade from the Market Watch Panel, this can be found on the left-hand side of the window.
2. Click and drag the instrument into the graph area to the right of the Market Watch window to render the graph for that instrument.
3. In the toolbar above the graph, there will be a “New Order” button, click this button to open up the Order window
4. In the Order window, there will be options for you to change the currency pair, the lot size and adjust Stop Loss and Take Profit. When the currency pair and settings are at your desired conditions you can place your trade by clicking on the “Sell by Market” or “Buy by Market” buttons.