Regular 
This spell is actually several different spells, as with (Animal) Control or Magic and Abilities/Spells/Body Control Spells/Boost (Attribute). The most common variants are Keen Vision, Keen Hearing, and Keen Taste and Smell, but variants are possible for unusual methods of perception as Detect (PM, X), Scanning Sense (P, X), or Vibration Sense (P, X). Keen (Sense) gives a +1 bonus per point of energy spent to Sense rolls of the appropriate type.

Duration: 30 minutes. 
Cost: 1 for each point of increase (maximum 5). Half that amount (round up) to maintain.

Item 
Clothing or jewelry.  
Energy cost to create: 150 per point of Improvement.