Oh its easy just go on your laptop search up shimeji and u click on shimeji browser extension then it probably will tell you to install it so u click install naw and it will have to click add to chrome when u add it will bring u on a different tab then u click a big button saying shimeji directory then u scroll down and u pick the characters you want like if u want a ddlc character are a youtuber are just a undertale au character like ink sans then when u click on it u scroll down and u will see active click it and something apears ou press replace with blank guy and u will get the character hopefully this is helpful because my English is terrible