Hide Power

(Psionics Handbook 3.0, page 0, DnD 3.0)

[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 (See Chapter 4: Psionics.) 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.