Sierra G
Songster
When Sarah is tilting her head it's probably just her positioning her eyes to get the best view of you. They do hear very well, but without external ears tilting their head doesn't change the acoustics much. However, Abraham would probably be reassured if you started talking to him before you can see him (at least before he sees you). He won't be as surprised and, while he'll probably offer a greeting, he won't complain about you scaring him.