How do you get to bull statue from train station Wall Street?

If you mean the Green Line train station (#4 and 5 trains) exit at wall street

and walk south on Broadway. In approx. 2 small intersecting streets the Bull

will be in the middle of the Road (Broadway splits here)

Perhaps even easier than the above is..... The Wall Street Bull is Located

in Front of 26 Broadway. Cheers!! Oops no that's in Boston.