Here are some things that Undertale fans do.
Please don't take any offense, for this is all stuff that I'VE probably done before thanks to the Undertale fandom.
i ususally claim that i had aaaaaaaall the luck! all of it!!!!!!!!
True it's always get dunked on
Before undertale: you wanna go?
After undertale: wanna have a bad time?
Geeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeet DUUUUUUUUUUNNNNNNNNKKKKKKEEEEEEEEEEEEEEDDDDDDDDDDDDDDDDD OOOOOOOOOONNNMNNNN
I've been wanting to do an secret cosplay for so long I've just never had the right stuff *cries* xD
I one time tried to cosplay as Sans at my friend's birthday party .-. Lets just say we were in public and people kinda asked if I was Sans XD EVEN IF I DIDNT KNOW THEM XD
Another thing is secretly fangirling over a certain skeleton.