Most Helpful Guys
Ugliness, short hair, moustache, beard, hairy body, penis and testicles.
It's mostly behaviour. If she farts loudly, often and unashamedly, if she swears like a trooper, sits with her legs spread wide and picks her nose, if she smells like a raw onion and scratches her boobs, if she drinks pints of extra strength lager, etc.
Most Helpful Girls
Define manly? It depends. Some girls look manly. And some girls look really girly but act manly.
Deep voice. Thick eyebrows/hairy/mustache. Tall. Big bones/body structure. Broad shoulders. Rowdy and rough.