JUMPS (5 letters) 'TWITCHES (7 letters) The term SOME NERVOUS REACTIONS can be broken down into three crossword solutions: GULPS (5 letters), JUMPS (5 letters), and TWITCHES (7 letters). GULPS is a reflexive action in which a person swallows quickly and audibly, often due to surprise or fear. JUMPS is an action in which a person moves suddenly and quickly, usually due to surprise or fear. TWITCHES is an involuntary movement of the body, usually caused by stress or anxiety. All three of these reactions are common signs of nervousness.