Introduction
OK, to discover the sign of the dove you must be able to make the appropriate hand gesture to the right person. That might sound simple, but in reality you will have to perform the same action hundreds of times, in front of people who will quickly conclude you're insane. If any guards are smart enough to realize what you're up to, they will follow you, and then no one will dare to meet you. So you must be careful.
Well, all that said, I'll teach you the sign of the bull. Reproduce it in front of enough people and eventually someone will give you the information you need.
Sign of the bull