Definetily yes. There is a truth behind that you can see it in the character and behaviour of someone. For example I´m a Lion and Lions always want to be in the center of the focus so all the people look to him and care just about him otherwise I the lion gets jealous and angry. And I really can say that I also feel like this. For example I always hated it that my mother cares as a nursery nurse about other kids but never cared about her only son me. Other signs maybe wouldn´t care.
But I believe that the chinese animal signs are far more mighty then the european ones. I´m Serpent and the Serpent also gets jealous if its relatives talk to others. This also fits to me. The Serpent can be agressive and hateful really fast if the people do not care well about the Serpent and if the Serpent starts to hate a person he hates the person forever. The Serpent is totally loyal but as the person starts to be bad to the Serpent the loyality is 0% within seconds and hate is becoming to be 100% and this never can be changed anymore. This also fits to me. And there are many other things which fit to me like this too.
So yes I definetily believe in signs. European and chinese as well.