The difference between is a communications system with productivity and one with fixed reference is that productivity allows infinite sounds, where as fixed reference is a signal in the system of language that is fixed, and aren't manipulated.
Getting to know someone can be hard. Sometimes it takes courage to ask or say certain things.
Getting to know someone is like getting to learn about something new. Always start off by asking name,age or etc. Do not get too deep because it can get too personal and a lot of people are insecure about certain things. Also it really depends on why you want to get to know someone maybe it can be for a relationship or etc. It isn't easy nor is it hard. Being self centered or TOO relatable can lead to getting off the topic of "getting to know someone", always try and stick to what they are saying and etc. Don't be too harsh or rude it can make people think otherwise or even lose confidence in themselves. Always think about what can possibly happen if getting to know someone this well what can happen in the future or how it will affect you. Always have a positive start don't be negative. Try not making the situation too serious that may lead to boredom for the person or even yourself, making you lose interest in getting to know them.
It is all a process but at the end sometimes it's worth it.
(This is probably really bad but I'm just giving you ideas)
