Collocations for reassuring - adj.

be
find sth

extremely, fairly, very, etc.
immensely
hardly, not exactly
Her comment—‘You can always try again if you fail’—was hardly reassuring.

vaguely
oddly, strangely
somehow

it is reassuring to hear, know, see, etc.

Reassuring is used with these nouns:
hand, hug, nod, pat, smile, squeeze