Help! My teacher wants us to bring in an object that is small that represents us. Can u think of something? I m girly?

If we told you what to bring, it wouldn't be personal.

Your being "girly" doesn't tell me anything about you. If you can't think of something that represents who you are, then certainly no one here can. What are your interests? What do you care about? Is there a book, album, or religious relic that represents you?

By the way, I find these "First day, break the ice" projects pretty pointless, and I'm a teacher. I think they cause people undue anxiety.

Bring in a glass or plastic covered bottle full of marbles or stones. Each one is firm and strong but when grouped together you can slip and slide with flexibility of conviction so as to be able to change your level of firmness on any issue.

What kind of a person are you? Are you the type who sticks up for a friend who is being bullied? Are you the type who is obsessed with celebrities such as Kim Kardashian? Are you the type of person who marches to your own drum? Etc.
A pebble as an example can represent a person who is steadfast and loyal; a feather could be representative of a person who likes a great social life. Etc.
Another thing you could try is to ask yourself what if you could be an animal what animal would you be and think of a reason for your choice. Then you choose an object that best represents the choice for you.You could do the same thing with precious stones.
Hope the above gives you some idea.

A music album you like
A drawing if you like art
You could do a collage of pictures of what you love
Pictures of family if you are a family person

You may be girly, but surely you have interests or plans for the future. If you're a swimmer, bring your goggles. If you think you might like to be an astronaut, bring in something with the moon and stars on it.