Thanks. Anyway, here's the next trophy guide, and one you'll really like!
Chapter 3
Bronze
Meet Murray: Introduced Murray to everyone.
After unlocking the treasure chest with the hook and got Murray out of the chest, show him to the following people (BEFORE replacing Santino's head):
Morgan LeFlay
Moose
Noogie
Bugeye
Coronado De Cava (located atop the mouth of the manatee)
This is kind of like Chapter 1's "The Legend of LeFlay" trophy, only this trophy is bronze instead of silver.
The 0.01 Percent Solution: Got one [and] one ten thousandth of the way through the alternate solution to the Cochlea puzzle.
During the intro, while you're on your way to resuscitate Morgan (probably after picking up the stinky earwax), pick up a grub. Later, after Guybrush and Morgan are introduced to the Brotherhood, climb back up the esophagus and show the grub to De Cava. After some conversation, head back down and pick up nine more grubs (only one at a time) and show them to De Cava and you'll nab the trophy.
Frequent Tuber: Used all the Bile Tubes in all directions.
This should be useful while you're trying to get the Brotherhood to join you by a unanimous vote. Go back and forth through the strange growth and then the weird bump. Once you've got the mug from De Cava and filled it up with bile, use the bile on the odd (clogged) protuberance to unclog it up, then jump into the odd protuberance to the place where the iron monkey is. After opening it up and taking the torture manual, go back through the protuberance and the trophy is yours.
I'm So Faced: Tried every possible Face-Off feature.
Also done while trying to get the Brotherhood to join you by a unanimous vote. Speak with Bugeye and ask him, "Will you vote me into the Brotherhood?" After some events, you'll get the "Stinky", "Lazy-eyed" and "Meanie" expressions from him. Use them and lose the Face-Off, then speak with Morgan, Moose, and Noogie and use the "ARRR!" on each of them to get the "Nasty", "Gomer" and "Tweaking" expressions. After getting the mug of bile, use it on the portrait of Fisheyes Alabaster to get the "Fish-eyed" eye expression, then look at the figurehead of the Howler Monkey near the portrait to get the "Monkey" mouth expression. Return to De Cava and pick up the monocular while he's busy looking at something. Place the Fish Eye of the Manatee on the monocular to form the Fish Eye Monocular, then give it back to De Cava, followed by the mug of bile, to get the "Bugged Out" eyebrow expression. Return to Bugeye and ask him for the Face-Off challenge again. After winning the first round, you'll get the "Hooded", "Cross-eyed" and "Geezer" expressions from him. Of course, if you don't want to repeat by using every expression in that game and just go for unoriginality, then you still get a chance to use every expression later in the Screaming Narwhal when you're trying to intimidate Noogie (prior to using the "Stinky", "Cross-eyed" and "Geezer" on him) and still get the trophy either way.
Bongo Baby, Yeah: Played the bongos repeatedly.
Also easy, especially when you're trying to get the Tongue of the Manatee. Use the seahorse head on the giant manatee to get swallowed up again. Look at the bongo bile sacs prior to using the flopping fish on them. After a nice cutscene, play the bongo bile sacs again and you'll get the final bronze trophy.
Silver
The Newlyfed Game: Convinced De Cava that Guybrush is married to Morgan.
During the intro, when Guybrush and Morgan are caught by De Cava, answer three of De Cava's following six questions in a row correctly and you'll nab the trophy.
There Is a Brotherhood of Jerks: Accepted into the Brotherhood.
Easy. Once you've managed to get Moose, Santino (which is Murray in disguise), Noogie and Bugeye to join you by a unanimous vote, the trophy will be yours.
Lord of the Locket: Tried every locket combination.
Useful when you're trying to learn the manatee language. First, press the button on the Voodoo Lady's locket, then use the golden wrench on the button to turn it around and press it again. After that, use the golden wrench again, and this time place Guybrush's picture on the picture of De Cava before pressing the button again (for a good laugh!

). Finally, use the golden wrench to turn the button around once more, then press it one more time to possess the Voodoo Lady and win the trophy.
What a Card: Tried every Tarot Card combination.
Also useful when you're trying to learn the manatee language. After possessing the Voodoo Lady, look at the voodoo mat and you'll see three cards: Curse, Fracture, and Journey. Use the nine combos of cards on the mat (ringing the bell on each one) prior to having De Singe walk up to you and bring you the book of the manatee language, and the trophy is yours on the final combo.
La Esponja... Grande?: Acquired La Esponja Grande.
Once Guybrush manages to bring the two manatees close to each other by having the female leave her cave, enter the cave and the final silver trophy unlocks during the cutscene.
Gold
Feed the Beast: Defeated De Cava and the Brotherhood.
Easy. During the ship battle, click on the rubber tree mast to distract De Cava and his crew into getting another cannon, and while they are distracted, use the seahorse head on the Narwhal's cannon to end the chapter, especially when you watch and hear Murray talk on and on during the end credits, followed by a final cutscene of Winslow. After that cutscene, the third gold trophy finally unlocks.
I'll do another guide for Chapter 4 later.