Well I suppose "exit strategies" might make it seem smarter than it actually is.
I mostly just mean having a few possible 'other things to do' at your ready if you need to get some breathing room. Take your partners for a walk of the old neighbourhood. Have an errand at a drugstore or something that you or some of you can go to, if need be. Maybe u might even need a code word of sorts to let your partners know u need to check out for a bit.
Depends on the gathering, but you might also try and get there much earlier and acclimatize people as they arrive and avoid a big surprise scenario like tgig mentioned. And maybe find ways to go off with people one on one.