I remember when we went to our first cachers meeting (Port Isaac, Cornwall) and the first thing we were asked to do was to write our names on a couple of big white stickers and wear them. This made it so easy as we were able to identify the cachers whose names we had seen on the cache pages or in the cache logs. Since then we have been to quite a few meets and as we have not seen the stickers on offer at any others we have made a pair of badges to wear and will wear them whenever we go to meets.
So come on you meet organisers, get some labels (even a wide roll of masking tape does the job) and give the newcomers a chance to recognise the regulars (who know each other).