What does the thumbs up icon mean?

There's a floating green/blue thumbs up icon above two of my tables and one rack. What does this mean?

That means people have "liked" your clothing racks. You click on them and collect XP and coins every time to you do so! :)

Thank you!

Yup, that means you got some likes. Each like will give you 1 xp and 20 bucks. Enjoy!