Favours given as signs of love are sometimes called "tokens" in the SCA, and as such should preferably be of personal significance to giver and reciever. Ordinary favours (not tokens) do not imply any love interest by themselves, merely that you uphold someone's honour for reasons of friendship or political alliance.
Tokens of esteem may also be given in the SCA. For example you might recieve a tassel for winning a tournament, or a small metal charm or similar in honour of your travelling (wayfaring) a long way to an event. These type of tokens can also be freely displayed in similar manner to favours, but do not imply that you are representing the group that gave the token.
- lovely survey of period love tokens - http://hometown.aol.com/noramunro/Tokens/index.htm