Changing pupil size.

[rhydra]

Can anyone else do this? I can make my pupils smaller and larger to order, haven't got a video camera though.

[eyepod]

Nope can't say I can do that but I can make my eyes shake really fast like a washing machine vibrating on spin cycle. If nothing else it's good for freaking people out. Only ever came across one other person that could do it.

[dreamweaver]

I can wiggle both ears. We should form a circus act.

[rhydra]

Must be the only one then!

[dreamweaver]

Must be the only one then!

Dunno. Whever I look in a mirror, I can make the pupils go a bit smaller or bigger but I thought everyone could do that. If you mean making them go to "pilled up" size to order on a sunny day, then no I can't do that.

[bernardsmith]

I can quite easily make my pupils go a lot bigger, although it does involve the intake of certain 'substances'. Is that cheating? :confused:;)

[rhydra]

Certain substances is definately cheating!

Anyway, I have read this.

Link. (http://www.reptiles-info.co.uk/reptile-facts.html)

Reptiles, like birds, have voluntary control over the muscles in their eyes, which determine their pupil size. This means that they are able to constrict or dilate their pupils at will, not just in response to light.

[brainfreeze]

Our pupils don't only react to light, or stimulants, but stimulation too.

That's how you can tell if "your date" is interested in you, by the dialation of the pupils ;)

[rhydra]

That's involuntary though, a giveaway but involuntary. :p