| Text | Length |
| Jerk one's knee, say | 24 |
| Respond to stimuli | 18 |
| Do a double take | 16 |
| Strike back | 11 |
| Do a double-take | 16 |
| Change, chemically | 18 |
| Acknowledge a stimulus | 22 |
| Gasp, say | 9 |
| Flinch, say | 11 |
| Flinch, perhaps | 15 |
| Answer back | 11 |
| Undergo chemical change | 23 |
| Take countermeasures | 20 |
| Flinch, for instance | 20 |
| Flinch, e.g. | 12 |
| Do a double-take, e.g. | 22 |
| Show one's emotions | 23 |
| Respond to stimulus | 19 |
| Give feedback | 13 |
| Become innervated | 17 |
| Be moved by a stimulus | 22 |
| Punch back instinctively | 24 |
| Duck, say | 9 |
| Do a double take, e.g. | 22 |
| Block a punch, e.g. | 19 |
| Undergo a chemical change | 25 |
| Strike back, say | 16 |
| Show surprise, perhaps | 22 |
| Not take it lying down | 22 |
| Look shocked, maybe | 19 |
| Have a poor poker face | 22 |
| Flinch or blink, perhaps | 24 |
| Express feelings | 16 |
| Do a spit-take, e.g. | 20 |
| Combine chemically | 18 |
| Change chemically | 17 |
| Be moved | 8 |
| Be affected | 11 |
| Write a letter to the editor, say | 33 |
| Wince, say | 10 |
| Wince, for instance | 19 |
| Wince, e.g. | 11 |
| Wince or flinch, e.g. | 21 |
| Wince or flinch | 15 |
| What Aly & AJ's "Chemicals" do | 48 |
| Voluntary emergency CB org. | 27 |
| Use your reflexes | 17 |
| Use one's reflexes | 22 |
| Undergo a chemical transformation | 33 |
| Turn another color, say | 23 |
| Strike back, perhaps | 20 |
| Strike back, e.g. | 17 |
| Start, perhaps | 14 |
| Smile, e.g. | 11 |
| Smile or frown | 14 |
| Slam on the brakes, e.g. | 24 |
| Show shock, perhaps | 19 |
| Show shock, e.g. | 16 |
| Show one's feelings, say | 28 |
| Show emotion, say | 17 |
| Show emotion, maybe | 19 |
| Say ''ouch!'' when pinched, e.g. | 48 |
| Run away, say | 13 |
| Respond to news, as markets do | 30 |
| Respond to force | 16 |
| Respond to a provocation | 24 |
| Respond reciprocally | 20 |
| Respond (to) | 12 |
| Push back, perhaps | 18 |
| Produce a chemical change in | 28 |
| Post an angry comment on a blog | 31 |
| Ooh and aah, say | 16 |
| Ooh and aah, e.g. | 17 |
| Not keep a poker face | 21 |
| Not just sit there | 18 |
| Not be deadpan | 14 |
| Move in a reverse direction | 27 |
| Move in a reciprocal way | 24 |
| Make a face, say | 16 |
| Laugh, perhaps | 14 |
| Laugh or cry | 12 |
| Laugh at a joke e.g. | 21 |
| Jump away in sudden fear | 24 |
| Jump at a noise, e.g. | 21 |
| Jerk or frown, e.g. | 19 |
| Jerk one's knee, perhaps | 28 |
| Jerk one's knee, e.g. | 25 |
| Hit back, say | 13 |
| Go off, as in the comments section | 34 |
| Give a snappy answer | 20 |
| Get even, in a way | 18 |
| Gasp, perhaps | 13 |
| Gasp or wince, e.g. | 19 |
| Flip, perhaps | 13 |
| Flinch or blink, say | 20 |
| Flinch or blink, e.g. | 21 |
| Fight or flee | 13 |
| Fight back, say | 15 |
| Fail to keep a poker face | 25 |
| Duck, perhaps | 13 |
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