Creating a front-end user interface for a social network website involves a combination of design, usability, and functionality considerations. Here are some key steps and best practices to follow:

1. Define your requirements: Start by clarifying the goals and functionalities of your social network website. Consider user profiles, news feeds, messaging systems, notifications, search functionality, and any other features you plan to include.

2. Understand your target audience: Research and analyze your target users to understand their preferences, behaviors, and needs. This information will help you design an interface that caters to their requirements.

3. Plan the user flow: Create a user flow diagram to map out the different screens and user interactions within your website. This will help you visualize the user experience and identify any potential bottlenecks or areas for improvement.

4. Design the interface: Use a combination of wireframes, mockups, and prototypes to design the visual elements of your user interface. Pay attention to the overall layout, typography, color schemes, and branding. Keep the design clean, intuitive, and consistent.

5. Responsive design: Ensure that your interface is responsive and compatible with various devices and screen sizes, including desktops, tablets, and mobile devices. Implement responsive design techniques to adapt your interface to different resolutions and orientations.

6. Navigation and information architecture: Design a clear and intuitive navigation system that allows users to access different sections of your website easily. Consider using standard navigation patterns, such as a top or side menu, along with breadcrumbs or a search bar for quick access.

7. Interactive elements: Incorporate interactive elements, such as buttons, forms, sliders, and dropdown menus, to enhance user engagement and improve the overall user experience. Ensure that these elements are consistent, easily understandable, and responsive.

8. Visual feedback and notifications: Provide visual feedback to users when they perform actions, such as liking a post or sending a message. Utilize notifications or alerts to keep users informed about relevant updates, messages, or activities.

9. Performance optimization: Optimize your front-end code, images, and other media assets to ensure fast loading times and a smooth browsing experience. Minify and compress your CSS and JavaScript files, optimize images, and utilize caching techniques.

10. Testing and iteration: Regularly test your user interface across different browsers, devices, and user scenarios to identify and fix any usability issues or bugs. Collect user feedback and iterate on your design to continually improve the user experience.

11. Accessibility considerations: Design your interface with accessibility in mind, ensuring that it is usable by individuals with disabilities. Follow best practices for accessible design, such as providing alternative text for images, using semantic HTML markup, and implementing keyboard navigation.

12. Stay updated: Keep up with the latest trends, design patterns, and technologies in front-end development. This will help you incorporate modern design elements and provide a more engaging and up-to-date user experience.

Remember that designing a front-end user interface is an iterative process. Continually gather user feedback, analyze user behavior, and make improvements to enhance the overall user experience of your social network website.