Subtle signs to tell if someone’s a lezza

1. She has her hands in her pockets 90% of the time. When I say in her pockets, I mean, properly, deep in the pockets, not just the fingernails tucked in.
edit: The (literal) 'thumb rule' and the 'knuckle rule' apply here: if all the fingers are in the pocket including the thumb beyond the knuckles there is a higher chance she is a lez. Straight women do not have their thumb in the pocket, therefore the knuckles are out visible.

2. She may have one of the symptoms of polycystic ovary syndrome (the most common one is acne. check out the wikipedia article for further information)

3. Her nails will be short

4. She may wear little jewelry  and the jewelry that she does wear, will often be a dog tag/ crucifix
edit: or a rainbow bracelet 

5. Little or no make up
edit: most of the time, no blush

6. Shoes will be comfortable (vans, converse, other flats)
edit: it is harder to tell if someone is a lez in winter by considering nothing but the shoe element: the boots that gay and straight women prefer to wear might look similar in style. But in summer, it is a whole different story. We can go sit at some park and the play the game 'Spot the lesbian'!