Stand/stick out like a sore thumb informal
If someone or something stands/sticks out like a sore thumb, everyone notices them because they are very different from the people or things around them.
The dress codes of the wedding are blue and green, but Liza wore the red dress - she stuck out like a sore thumb.
Jack is sticking out like a sore thumb with his Hawaii T-shirt in the cold December air.
The scare of sticking out like a sore thumb makes Anna try to copy the way her colleagues wear, but she doesn't feel happy after all.
To do something differently
To be totally different from something.
What one person finds pleasant, delightful, or advantageous may be hated by another.
Different people like or do different things.
If two things or two people are poles/worlds apart, they are totally different from each other in behavior or opinions.
The verb "stand/stick" should be conjugated according to its tense.
Based on the research of Mary McMahon in Wisegeek, the phrase “it sticks out like a sore thumb” since at least the middle of the 16th century, and the idiom is probably much older. The phrase also experienced a brief heyday in the 1940s, thanks to its appearance in the popular Perry Mason series of detective novels.