Just what are they? And who can give them out?
Favors, Tokens and Personal Tokens:
Tokens can be given for the esteem one has for another -*ahem* a token of esteem- for good work done, helping, nice fighting, etc etc. One of the coolest I have seen was given to a friend of mine. It was a pin with a red plastic faceted bead on it. It was given to her by a member of the Order of the Pelican because he was impressed with her hard and continued work. It was one of his drops of Pelican Blood. (In medieval times it was thought that pelicans stabbed their breasts and fed their young on their own blood in times of famine. Thus the pelican became a symbol of self-sacrifice beyond the call of duty.)
Unless giving tokens out is specifically reserved for a group of people, (Peers, White Scarves, etc.) to give out, for a specific thing, such as a tournament or display of some kind, then you too may give out tokens. You may give someone a token for any reason at any time you wish. Same for favors. Both are given out for reinforcing a good, nothing else.