"Yo no" as a stand-alone statement probably means "Not me."
Literally it means "Me no"
The phrase "Yo siempre estoy mean" translates to "I am always mean" in English.
"Quen soy yo" in English translates to "who am I" or "who I am."
Yo tango = I dance the tango Yo tengo = I have
"Yo también chica" translates to "me too, girl" in English.
"Y yo de ti" translates to "and I, about you" in English.
"Yo se que tienes" translates to "I know you have" in English.
It means "I am short."
I have it.
To rest.
It could mean "I, yes" or "I did"
The Spanish phrase "yo estoy aca" translates to "I am here" in English.
I'm nice/pleasant