Squire
This is a hard topic to discuss, as squiredom can mean many things to many different people. In my view, being a squire does NOT mean that you are any better than any other member of the society. I believe squiredom is a relationship where a knight believes that he has something to offer you, and is mutually beneficial to both parties.
Squires can be recognised by a red belt that often has their knight's device painted on the end. This shows that you have fealty and a duty to your knight.
Different knights choose squires for different reasons, and expect different things from their squires. It is something that has to be discussed when the opportunity arises.
As is said these are my personal beliefs and are by no means the one right belief, there are many different views with regards to squiredom and my views may totally go against those of another person.