# Human

> The nodes in the Human category of the Add node panel: Quick Form and Action App, which pause a workflow until a human responds.

The **Human** category of the **Add node** panel holds the nodes that ask a human to review, approve, or fill in something. The run pauses at the node, and continues with the human's answer.

![The Human category: Quick Form, Action App, Validate extraction, and Validate classification.](https://dev-assets.cms.uipath.com/assets/images/maestro/add-node-human-orchestrate-ddd9c3e0.webp)

- [Quick Form](node-quick-form.md): a human fills in a form that you build on the node, and the workflow continues with their answer.
- [Action App](node-action-app.md): a human works on a task in an app with its own interface.

## Next steps

- [Add human approval to a workflow](add-human-approval.md): build an approval step by step.
- [Node reference](flow-node-reference.md): all the categories of the **Add node** panel.