4. Only endorse what you know. While it may be easy to endorse all of a connection's skills, it's not necessarily the best thing to do, Williams says.
Stick to endorsing people based strictly on their areas of expertise. If someone has 30 skills listed, don't endorse them all, she recommends. "Less is more when it comes to endorsing a connection. If you're all over the place with your endorsements, you'll lose credibility."
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