She targets new dudes, or people who are new to the game of love and relationships who think they have control of everything.

She does not take these love games seriously, maybe meaning she doesn't take relationships seriously because it is all just a game for her and she is in control of it.

This line implies that she has made mistakes before, meaning that she has targeted men before and dated them. She is experienced in these type of things which is a role reversal, because women are not expected to have as many past partners.

The singer has recognized her target and is getting ready to entrap or capture the target.

This could reference the troupe of "love at first sight". It could be a beast spotting their new prey as well.

This could be a reference to the seductress archetype, in which supernatural women tempt man to fall to their primal desires.

Swift can show the person a new world, one that could be good or bad. She is reversing the roles, and being more dominant saying she can show the person more things.

She is greeting her lover, whom she might bring to ruin.

Chorus start, ends at blank space EDIT

When she changes into another person that is taught by a man she gains an audience immediately, people pay attention to her because a man taught her how to be. Despite not having the attributes she should have of a normal woman, she is respected because she was taught by man.

Placard= card, poster, billboard. She was able to get a full house despite not having her name out there. Dickinson imagines that her skills are so great and wonderful that she can get an audience without advertisement.

She considers it easy to manipulate people. Or that it is easy to please people.

Dickinson knows how to do what she should do but doesn't do it and the audience does not know that and they applaud her.

The people still cheer her on despite her not fitting in.

The people are pleased with her despite her bad performance. It could represent how some societies respect the individual person even if they are very unorthodox.

Could be a reference to how ballet dancers seem to be able to balance themselves while dancing. So she did not really act graceful while doing her dance.

Eider= a type of large sea duck. A reference to how Dickinson does not conform to the expectations set upon her by the audience.

Could represent how some ballet dancers, move in a sort of non human way. It could also represent how women deform themselves for society's expectations of a perfect women.

She does not put on a show for other people to see.

Ringlet= hair curl. Even if she doesn't have features similar to others she can still gain their attention.

Even though she doesn't hide her emotions she will still be acknowledged.

Dickinson again in her state of expressiveness would make others jealous because she has the ability to express her emotions and outshine others.

Her being able to express herself would make others people pale. It might make the people who were unable to express themselves envy her.

If she had been taught how to express herself, she would have been the most expressive person ever. She would have been the best at expressing herself and emotions, outshining others who have learned how to do it.

The author is saying that if she had the knowledge of ballet, something that requires lots of stamina and movement, then she could be able to do something more grand.

This feeling of happiness she gets controls her, she is unable to do anything about being controlled because she was never taught what to do.

She often thinks about something, that something could be happiness.

No one taught her how to live a proper life.

The author is limited in her movement, it could mean that she is limited in life.