Okey, I am not going to give you big lecture about how to make arrow marks in word document, I will show you easy and fast way to make arrow mark by using keyboard shortcut keys in your word document, this shortcut key will work all version of Microsoft word document like 2003, 2007, 2010 and 2013. So you have to just press “-->” and “space” for right arrow mark and for left press <-- and press “space”. 
See video tutorial….. Please don’t forget like, share and subscribe