What are similes in the book , 'The House on Mango Street'?

Examples of similes:

“.... it is the Mexican record my father plays on Sundays mornings when he is shaving, songs like sobbing.

“.... at school they say my name funny as if the syllables were made out of tin and hurt the roof of you mouth”.

“.... but my mothers hair, my mother’s hair, like little rosettes, like little candy circles all curly and pretty because she pinned it all in pin-curls all day.”