Likes ...
STores
ABigail
GHosts
OPeras

DEer
HIgh-tide
NOise
DEvils

TUrnips
STeve
DEnnis
HIlda

But Dislikes ...
shops
Mary
goblins
arias

does
low-tide
quiet
angels

carrots
John
Menace
Gilda

My friend likes words that begin with two consecutive letters of the alphabet.