An influencer is someone who can create interest in a particular item, such as a consumer product, by sharing posts about it on social media platforms.
"A person who is able to generate interest in something (such as a consumer product) by posting about it on social media."
This role centers on using online presence to affect others' opinions or behavior toward a product or idea.
Influencers leverage their social media reach to promote products and capture public attention, shaping trends and consumer choices effectively.