no they are the same as any chickens - some people find one breed flighty whilst others don't. If you choose silkies don't expect many eggs as they are notorious for going broody at the drop of an egg
. My sablepoots are very friendly (Mrs poot loves to sit on your head) but not very forthcoming on the egg front but I'm not too bothered as I have these cause they are cute. If you get any cockerels their crowing can be very high pitched and shrill
.
Bantam faverolles are very nice as are bantam araucanas (and these lay blue/green eggs).
You would do best though to check out the different breeds find out which you like the look of then ask about temperament
