I'm new to the forums, but I've been thinkining about an opener. Wondering if anyone as tried this or something similar:
After approaching a table with some HB's, jokingly around ask if their dates stood them up and to get an indication if they are single and interested. Say something like I will introduce to any man or women in the room, except me. (To indicate you are not available)
If there is a group of say 3, and you are able to find say 2 of them dates, the last one standing per se is likely interested in you and can look for ioi's during the time you've been helping out. Seems like it could be a good way to demonstrate value while giving the appearance of being unavailable.