From a distand part of the nowhere this joke of a man wonders across it, his small hands are really usefull to handle little lost things across the nowhere. Besides any idea you can have about him and his aparence he really dosen't sells to residents, all the objects that he collects and then sells are visitor size. Because of this he is mainly a neutral resident with the revolting visitors that had the luck...or misfortune to came across this man.
The way that visitors treat him or react to his precense is crucial to how he would act with them, after his first impresion the Selesman would ask in the lenguaje of the visitor perfectly clear and with a really low pitched voice a question thay they have to answere correctly, in the case of a wrong aswere he would open his jaws and eat the visitor, or in other historys that the visistors tell in this farlands of the nowhere he grabs them and put them inside his coat, then he brings them to his house and turns them into multiple objects made of leather or other objects like bone made trinkets.
In any the case of the visitor asking correcly he would open his coat, showing a variety of objects as wrist watches, wrenches, multiple match boxes, alcohol bottles, dinamite, old astronomical navigation objects, blankets of different materials and sizes, porcelain, plush dolls animal or not, lighters of multiple shapes and sizes and some visitors tell that he bringed objects like clothes of their size in a mint state, leather balls and books, bone made ornaments and one time a fully fuctional visitor size car. When he encounters the same visitor again he wouldn't want a history or ask a question, he would ask you if you have money to trade a random object of his coat.
His intensions and purpose in the nowhere are unknow, some visitors says that was a visitor back in the day, and now he looks like this, wonders across the nowhere exploring not being a member of any place or city, a traveler that likes riddles and rimes, some of the ones that had encounter him before and reciving his last "present" says that he asked them if they remeber something before their arrival in the nowhere, if the kid honestly response no, he would ask what they had lived in the nowhere [He never calls the nowhere itself, he calls it "the lost forgoten place of lost forgeten things"] If the visistor tells his history without any lie in his words the Salesman would leave and just go, he could be tracked but eventualy he would be lost in the crowd of other misshaped residents, if the visistor lies or refuces to tell his history he would leave without trying to do anything.
He apears in any city or place in the nowhere exept in one, Pale City, no one knows why.
[me in the LN universe because i have free will, i decide make a resident with a more fairytale like history, he stills eat visitors or skins the little liars to make other objects anyway. His backstory and mytology are inspired by the tales of sphyinxs and the harpys of His Dark Materials, his aparence inspired in the blob man of the portrails of LN 1, the snakes of Beetlejuice and the Gloink Queen of The Amazing Digital Circus]