4E GURPS Psionics cont.
The "traditional" Psionic Attack in GURPS falls under the Psychokinesis Talent, and is called the Innate Attack skill. Psionics in GURPS is a little bit weird, because you can buy "levels" in your Psionic Talents as with skills, but each power within your chosen Talent(s) is bought separately as an Advantage for the character. And, like I said earlier, you can always buy more levels with your talent with later-gained character points, but you can NOT add a totally new Talent later. If you buy a talent, but no skills that fall within that talent, then that is a "latent" talent that may be developed later on. (There will need to be some backstory that goes with its development, but that's no big hurdle.)