Giving kudos is a way to show appreciation to other people who have tried to help you. It is sort of like writing a thank you card - and an important way to contribute to the community.
To give a Kudos:
- Look for the blue thumbs up on the bottom left corner of a post, beside the Reply button and click on it.

The count of Kudos given will increase, reflecting the change.
Note: You can give Kudos to others’ posts only and you can only give 1 Kudos per post.
If any of the replies you received resolves your issue, it's always a good idea to show your appreciation to the helper and inform the community that a solution on this issue is available.
You can mark that post as an "Accepted Solution" - learn how to do that in the following thread:
How to Mark Your Question as Solved
I was an HP employee.