He should press CTRL+5 and shape shift to an appearance suited for each Reigon since he isn't limited to just Bilgewater but the world.
Demacia= Demacian Armor or common clothes
Noxus= Noxian Armor or the rags of the poor to deceive people
Zaun= Steampunk theme formal suit
Piltover= Something similar to the Deboniar Skins
Freljiord= A fur coat with a hoodie or a little helmet with the fur vest
Shurmia= Similar to what Pharoh Nasus wears
Shadow Isles= Wearing a sheet over his face being a spoookkyyy Ghost Boooo
Ionia= Probably Robes to fit in with the Ionian Culture
Bandle City= A fur coustume similar to what Cottontail Fizz wears but it resembles a Yordle but the coustume is obviously way to small for Tahm
Bilgewater= 2 types his default except much more formal
Or one where he's basically old GP
It should be called "Cultural Bargainer Tahm Kench"
He has a quote for each Region
Demacia: I do despise a man who breaks a law, and I just want to eat up those who break a promise, especially to me
Noxus: A city where deals are made everyday! Whether threats or blackmails this is my place!
Zaun: A place where people are desperate and would give anything to get out of a bad situation, just my expertise!
Piltover: For just a price I can take them to places where they can invent the wildest things!
Freljiord: Although it's too cold for my taste, with all the conflicts deals must be made, and bargains to see.
Shurima: People are scared of a little itty bitty scorpion thing (
) when they should be afraid of the one who takes them there....
Shadow Isles: Even the dead needs deals to be made sort of a unfinished business one might say.
Ionia: Even the monks here hate the Noxus for what they've done. There willing to go to any lengths to make Noxus suffer for what they have done. Any...
Bandle City: You would be surprised about what kind of nasty deals they make here. Especially a short blue one that wears that weird hat
Bilgewater: Default: In this Wharf infested town of mine I know all and everyone knows me.
Pirate: Pirates here ask me to transport things for them. The fools think when I mean pay they mean in money, they don't realize I don't bargain with money.....