Modifying greetings

I don't know how Siboot works internally during conversations.

Let's say I begin to talk to a character and I give him a friendly greeting. Will he bear that gesture of friendliness in mind? Or will he forget that gesture as soon as we start talking business?.

I think a good way of making greetings more interesting could be giving them more importance in the conversation. If greetings affected significantly the opposing character's attitude, the player would have to pay more attention to them.

For instance, at the beginning of a conversation with a character in a weak position, I could craftily decide to use a friendly greeting to get his affection and therefore get better answers from him later.

What I'm trying to say is that maybe greetings could be used strategically, making the player consider what the situation is and which is the best way to aproach other character.