> ## Documentation Index > Fetch the complete documentation index at: https://stagehand.readme-i18n.com/llms.txt > Use this file to discover all available pages before exploring further. # Act > Perform actions on the current page ```typescript TypeScript theme={null} await page.act("click on add to cart"); ``` ```python Python theme={null} await page.act("click on add to cart") ``` `act()` allows Stagehand to interact with a web page. Provide an `action` like `"Click on the add to cart button"`, or `"Type 'Browserbase' into the search bar"`. You can define variables that will not be shared with LLM providers ```typescript TypeScript theme={null} await page.act({ action: "fill in the form with %username% and %password%", variables: { username: "john.doe", password: "secretpass123", }, }); ``` ```python Python theme={null} await page.act({ "fill in the form with %username% and %password%", variables={ "username": "john.doe", "password": "secretpass123", }, }) ``` Small atomic goals perform the best. Avoid using `act()` to perform complex actions. For multi-step actions, use [`Agent`](/reference/agent) instead You can pass an `ObserveResult` to `act()` to perform the suggested action, which will yield a faster and cheaper result (no LLM inference). ### **Arguments:** [`ActOptions`](https://github.com/browserbase/stagehand/blob/main/types/stagehand.ts) | [`ObserveResult`](https://github.com/browserbase/stagehand/blob/main/types/stagehand.ts) `ActOptions`: Describes the action to perform Specifies the model to use Configuration options for the model client Variables to use in the action. Variables in the action string are referenced using %variable\_name% Set `iframes: true` if the target element exists within an iframe Timeout in milliseconds for waiting for the DOM to settle Timeout in milliseconds for the action being performed. `ObserveResult`: A string representing the element selector A string describing the possible action The method to call on the element The arguments to pass to the method `ActOptions`: Describes the action to perform Specifies the model to use Configuration options for the model client Variables to use in the action. Variables in the action string are referenced using %variable\_name% Timeout in milliseconds for waiting for the DOM to settle Timeout in milliseconds for the action being performed. `ObserveResult`: A string representing the element selector A string describing the possible action The method to call on the element The arguments to pass to the method ### **Returns:** [`Promise`](https://github.com/browserbase/stagehand/blob/main/types/stagehand.ts) If the action was completed successfully Details about the action's execution The action performed