1) All atwitter 2) All keyed up 3) Anxious 4) Anxiously impatient 5) Apprehensive 6) Champing at the bit 7) Chomping at the bit 8) Constantly fidgeting 9) Constantly shifting 10) Eager 11) Eager to leave the picnic 12) Edgy 13) Exclusively Anglo word 14) Exclusively Saxon word 15) Fidget-prone 16) Fidgeting 1) Anxious 2) Ill at ease 3) Impatient 4) On edge 5) Restless 6) Uptight 
Antsy is slang for nervous, jumpy, agitated.
fidgety adjective unable to relax or be still; `a constant fretful stamping of hooves`; `itchy for excitement`; `a restless child`
unable to sit or stand still; fidgety: The children were bored and antsy. · apprehensive, uneasy, or nervous: I'm a little antsy since hearing those storm warnings.