Here's a list of all locations for the Troves & Trickery quests.
I hope you will try to find them all and figure out the right emote by yourself first. For those that are truly lost or stumped, here ya go. Listed by Name - Location - Emote.
Hobbiton (Party Tree)
Lobelia Sackville Baggins - 29.4S, 71.3W (Bag End) - Faint
Porto Brownlock (Novice Farmhand) - 30.5S, 70.7W (Farms N of Hobbiton) - Smoke
Ted Sandyman - 30.8S, 71.2W (N Bywater Bridge by watermill) - Stretch
Daddy Twofoot - 31.3S, 71.1W Outside The Ivy Bush Inn - Pick
Duillond
Fanhir (One-handed Weaponsmith) - 24.0S, 92.6W - Roar
Nathronwen - 24.2S, 92.7W - Handstand
Lubathred - 24.3S, 92.5W (NE of mailbox on a balcony overlooking waterfall) - Cower
Barchiril (Duillond Housing Broker) - 25.0S, 90.6W - Whippitydo
Bree (Near Market Gate - 30.1S, 51.3W)
Tad Ashmead - 31.3S, 51.1W - Dustoff
Tad Leafcutter - 31.8S, 51.4W (Bree rep area) - Shiver
Mat Heathertoes - 31.2S, 52.5W (Beggar's Alley) - Mock
Lily Sandheaver (Grocer) - 29.4S, 52.3W (E of W Bree stables) - Yawn
Thorin's Hall
Kaupi, Fathi, Farmann - Auction house - Charge
Egil Oldbeard - Maker's Hall near supplier - Flex
Adwyn Flame-eye (Bowyer) - Near hunter trainer - Pushups
Dwalin - Far N in Thorin's Hall - Tantrum