What methods and tools do you use when performing manual testing of a software product?

During manual testing of a software product, I use the following methods and tools:

• Requirements and specifications analysis to understand the functionality.
• Test case development with step descriptions, expected results, and conditions.
• Functional testing to verify compliance with requirements.
• User interface testing to assess usability and correct display.
• Regression testing after making changes.
• Cross-device and cross-browser testing to check cross-platform compatibility.

Tools I use to support manual testing:

• Issue and bug trackers (e.g., Jira) for defect recording and tracking.
• Spreadsheets or specialized programs for managing test cases (TestRail, Zephyr).
• Screenshots and videos for documenting found bugs.

This approach helps systematically and effectively verify the quality of the product.