• to be all nerves, wired
• alien, extraneous, newcomer, outlander, outlandish, strange, stranger
• antsy, edgy, fazed, fidgety, flustered, have cold feet, het up, highly strung, jittery, jumpy, nervous, nervy, restive, restless, skittish, stroppy, to be on edge, to feel nervous, to feel rum, to jitter, unstrung, uptight, vexed, wired