List of Reactions
Four reactions are initially available after learning to use reactions. The other 40 are randomly taught by villagers of the specified personalities, five per personality. Ones requiring high friendship may be learned after becoming close friends with a villager; they are not necessarily the last ones learned for that personality.
Aggravation
peppy
Agreement
cranky
Amazed
snooty
Apologetic
sisterly
Bashfulness
lazy
Bewilderment
cranky
Cold Chill
sisterly
Confident
sisterly
(High friendship)
Curiosity
peppy
Daydreaming
normal
(High friendship)
Delight
Initial set
Disagreement
sisterly
Distress
jock
Dozing
smug
Encouraging
jock
Fearful
normal
Flourish
jock
(High friendship)
Glee
normal
Greetings
Initial set
Happiness
peppy
Heartbreak
smug
Inspiration
cranky
(High friendship)
Intense
snooty
Joy
Initial set
Laughter
sisterly
Love
snooty
(High friendship)
Mischief
peppy
(High friendship)
Mistaken
lazy
Pleased
normal
Pride
lazy
(High friendship)
Resignation
smug
Sadness
normal
Sheepishness
cranky
Shocked
jock
Showmanship
smug
(High friendship)
Shyness
lazy
Sighing
snooty
Sleepy
peppy
Smirking
smug
Sneezing
jock
Sorrow
lazy
Surprise
Initial set
Thought
snooty
Worry
cranky