I'm a software test engineer and want to improve my manual testing skills so that I can utilize them in my organization.
Please suggest any good exercises specially for manual testing.
Open source projects don't have special characteristics for manual testing. They are the same as closed source. You can pick any public website and apply these techniques.
To improve manual testing skills, I suggest the following:
In addition to already mentioned suggestions:
You are demonstrating the need to learn. Very good indeed! Here is some advise:
Correct language usage. If you want to come across well and communicate effectively you need to take the time for this.
Read up on methodology. Know your terms and apply them correctly. Avoid common pitfalls.
Apply you mind. Look up existing test cases of good quality. Make sure you come to understand the how and why. Talk to other testers and developers, what are they worried about in the functionality? Initiate 2-sided discussions to come to good test approaches. Read up your bug database. How to catch these in your next test case? Etc Etc.
Think up more approaches as you go along and have fun.