Use 'lachrymose' to describe someone who shows deep emotions, especially to the point of crying easily. His lachrymose reaction to movies made him avoid watching dramas in public.
Pro Tip 2/3
Literary Flair
'Lachrymose' is often used in literary or sophisticated contexts to add a touch of elegance to the language. The protagonist's lachrymose disposition gave the novel a somber tone.
Pro Tip 3/3
Not Necessarily Negative
Being lachrymose can be seen neutrally or positively, such as showing sincere empathy. Her lachrymose response to the plight of the homeless was touching.