Hide Power [Metapsionic]
You can manifest powers without a telltale display.
Benefit: A psionic power can be manifested without one associated display characteristic chosen by you when you take the feat: auditory, material, mental, olfactory, or visual.
The hidden power costs a number of power points equal to the standard cost +2.
Special: You can take this feat multiple times, each time choosing a different display characteristic to hide while manifesting a given power.