Phobos: Ah! A visitor. Hello! Phobos would say in a polite and friendly manner. He seems to be the smartest of the two. He often complains of migraines because of his close proximity to Mars, being just over 9,000 kilometers above it's surface. The tidal forces are what specifically causes his migraines.

Deimos: Hi! Deimos would say in a quiet manner. Deimos seems to be the youngest of the two Martian moons, that combined with how far away he orbits from Mars means that he doesn't really get to be included in very many conversations, causing Deimos to feel sad and somewhat anxious.