Collocations for surprised - adj.

appear, be, feel, look, seem, sound

extremely, fairly, very, etc.
completely, greatly, most, terribly
hardly, not altogether, not at all, not entirely, not in the least, not particularly, not totally
Her father didn't seem at all surprised.

a little, slightly, etc.
mildly, vaguely
She looked vaguely surprised at my remark.

genuinely, truly
clearly, evidently, obviously
secretly
constantly, continually
I am constantly surprised by what my fourteen-month-old son understands.

pleasantly
He was pleasantly surprised to discover that he was no longer afraid.

at
He sounded surprised at this request.

by
She appeared genuinely surprised by this gesture of affection.

Surprised is used with these nouns:
expression, face, gasp, look, yelp