The twelve Fruits of the Holy Spirit are works that we can perform only with the aid of the Holy Spirit. Therefore, the performance of such works is an indication that the Holy Spirit dwells in the Christian believer.
The twelve Fruits of the Holy Spirit are
charity (or love)
joy
peace
patience
benignity (or kindness)
goodness
longanimity (or long suffering)
mildness
faith
modesty
continency
chastity