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