I'm extrmely shy around the guy I like?

Kay, so Ive liked this guy for a while, and over time ive gotten steadily more comfortable with him. then, when i was finally pretty at ease, i found ou tthat hes falling for me too! So now im like, SUPER shy around him! I can never htink of anything to say, and its really awkward. What do i do? The poor guy cant sustain all of our ocnversations on his own!