In combat, you do +10% damage to male opponents. Outside of combat, you might just think of especially creative things to say to members of the opposite sex.
Chapter 3
Level Perk
Level 4
Herpetologist
You deal an extra 50% damage when you attack mutated reptiles.
Chapter 5
Level Perk
Level 6
Short Temper
When your companions drop beneath 50% health, you gain +5% to all types of damage
Chapter 7
Level Perk
Level 8
Quick Draw
Weapon Equipping and Holstering is now 50% faster
Chapter 9
Level Perk
10
Strong Back
+50% Carry Weight
Chapter 14
Level Perk
12
From the Brink
Your brush with death has made you stronger. +30 HP
You gain one additional skill point for reading books, and double the skill points for reading magazines! And I guess you can try to explain it to Shayle too.
Chapter 9
Level Perk
Educated
You gain 2 extra skill points each time you level up
Chapter 14
Level Perk
Travel Light
While wearing light armor or no armor, you run 10% faster.