Newblood
If your function will be mixed a good idea would be to informally appoint a Ms 'Special Assitant' Vice to round up those folks malingering in the ladies, whilst you are rounding up folks from the gents.
I won't add any more because I wouldn't want you to inadvertently corrupt the genteel traditions of a Crab Air mess with the vulgarity of my Convict Army approach.....
good luck