David

nature

dirty jokes; black humor; doesn't want to offend, but sometimes his words can hurt; abrupt in communication; says the first thing that comes to mind.

manner of communication

often swears, does not try to be perfect. does not consider it important to write with a capital letter and often skips punctuation marks. does not like abstruse words, speaks in simple and understandable words.

appearance

at the beginning it is unknown, but from the dialogue you learned: his eye color is green. he has short, often unkempt, dark hair.