Just like at the resturants it's service that counts. It dosen't matter if it's a male or female the rules are the same. Good service good tip(5-10 bucks), bad service well you know.
My Rules !
1. Dirty shoes, clean my boat !
2. Dirty gas or pump out hose, clean my boat !
3. Gas spill, clean my boat !
4. Be there to tie me up.
5. YOU PUMP the gas, not me.
Failing to do one or more of the above will impact the tip.
I have traveld all over the Great Lakes in my boat and I find that the girl dock hands are much better than the guys. They clean up, they smile, they don't jump and crawl all over everything.