How to Endorse Other Klout Influencers
You can use your influencer list to make endorsements, which is an action Klout describes as giving +K. A portion of your Klout Score comes from the number of endorsements you receive from others. Klout puts a limit of 10 on the number of endorsements one can give each day in order to maintain the integrity of endorsements, thus leading to a more accurate overall Score.
While you are looking at your top influencer list, you can endorse another influencer by giving +K. Each influencer has her three most influential topics to the right of her name. Select one of these topics and simply click Give +K. Or, if you don’t see the topic you’re looking for next to the influencer’s name, you can view a more comprehensive list by doing the following:
Select the influencer you want to give +K to by clicking on his name.
This opens the profile page for that influencer.
Scroll down until you see Topics in the sidebar on the left side of your screen.
Mouse over the Topics list and click the See More link that appears in the top-right corner of the list.
Search for the topic you want to choose and Give +K by selecting the orange arrow button to the right of that topic.