"Me gusta ese chico alto."
Translation:I like that tall boy.
I remember by it being the opposite of English. In English that has the 't' sound. In Spanish this that has the 't'.
Niño/a generally refers to a young child, while a chico/a can refer to anyone young. Like child vs young person in English.
Duo didn't like chico translated as youth. In English a tall boy is a piece of furniture.
Eso is a neutral pronoun, if you're describing a concept that is not represented by a noun. Ese is the masculine demonstrative.
Ese is used as "that" if you're describing a singular masculine item. Eso is a neutral pronoun for a concept that is not represented by a noun.
'ese' and 'alto' are used for males. So it's chico here. For chicas the corresponding words would be 'esa' and 'alta'. Hence, 'me gusta esa chica alta.'
In my country people say chic just to refer to a girl... En mi país las personas dicen chic para referir a una nina