Daddy's Boy/Girl Requirements: 4 Int - Your dad was a scientist and doctor, so this increases your medicine and science skills by 5 points. If you're a intellectual character, this is a perfect perk for levels where you can't find any other perk that is interesting or useful. Brute-force characters should skill it.
Gun Nut Requirements: Int 4 Agi 4 - This is a really good perk for combat characters because not only does it increase skill in Small Guns by 5, it also increases skill in Repair by 5, a skill that combat characters often for get about but which is essential to surviving long journeys in the wasteland.
Intense Training Requirements: None - This is a bread-and-butter perk. Attributes are very important to everything you do, and using this max out endurance on a character that started with only 5 or 6 points in that stat can turn a relative wimpy sneak-based character into a ninja that can spring from the shadows and then wrestle a Supermutant to the ground. If you don't see any other perk that you just HAVE to have, then give this one a very close look.
Little League Requirements: Str 4 - Increases Explosives and Melee. Considering how rarely you'll be using explosives, this isn't a very attractive perk.
Swift Learner Requirements: Int 4- If you feel the need to level up as quickly as possible, then get this. However, remember this: if you spend a perk on this, you'll be getting on less perk that is actually useful to your character's overall effectiveness once you reach maximum level.
Thief Requirements: Agi 4 Per 4 - Increases your Sneak and Lockpick skills. If you're playing a sneaky character, this is an obvious filler perk for levels where nothing seems like a good choice.
Lady Killer/Black Widow Requirements: None - Gives you extra dialogue options with the opposite sex. This is fun at times, but not very useful.
