Les adjectifs démonstratifs

Demonstrative Adjectives (This, That, These, Those)

masc.:  ce, cet (this, that)     ce, cet .. ci (this ... here)      ce, cet .. là (that ... there)
fem.:  cette (this, that)          cette .. ci (this ... here)        cette .. là (that... (there)
plur.:  ces (these, those)       ces .. ci (these ... here)        ces .. là (those ... (there)

 J'aime ce livre. - I like this (that) book.
Cet homme est sympa. - This (That) man is nice. (Ce becomes cet in front of a masculine noun that begins with a vowel or h).
Cette idée est intéressante. - This (That) idea is interesting.
Je cherche ces femmes. - I'm looking for these (those) women.

This or That ?!

Ce prof-ci est sympa. - This teacher is nice.
Ce prof-là est sympa. - That teacher is nice.

Cet étudiant-ci comprend. - This student understands.
Cette fille-là est perdue. - That girl is lost.