Since Shopify Payments isn't available for stores based in Malaysia, showing multiple currencies on your storefront requires a third-party Currency Conversion app such as BUCKS Currency Converter PRO++ instead (free or paid options are available depending on the features you need). These apps can detect a visitor's location by IP address and display prices in their local currency for browsing. However, without Shopify Payments, actual checkout still has to happen in your store's default currency — the app converts and displays the total at checkout using the latest exchange rate, but the customer can't pay in their own local currency directly.