Verb
give verbal or other expression to one's feelings
Source: WordNetThe thing about kids is that they express emotion. They don't hold back. If they want to cry, they cry, and if they are in a good mood, they're in a good mood. Eddie Murphy
My job is usually to express emotion as freely as possible. Meryl Streep
Could anything be more inimical to art than a fear of emotion, or a fear of "excessive" emotion, or a reluctance to express emotion around others? Caitlín R. Kiernan
Acting is not being emotional, but being able to fully express emotion. Kate Reid