one hand and grab the left shirt tail end with the other hand. then, fold it over towards the collar of the t-shirt. you want the end of the sleeve to not go past the right edge of the t-shirt collar. go ahead and make it nice and neat to remove the wrinkles.
now we want to go ahead and do the same thing for the other side. grab the right sleeve with one hand and the right shirt tail with the other hand. fold them over to the left side. you want the right sleeve to not extend past the edge of the other side. now make the fold neat 