Flight crew almost always go out for a drink or social activities, cabin crew almost never. You won't see the cabin crew out anywhere on a nightstop and only rarely on the second night of a longer slip. There is a high proportion of Spanish and Italian cabin crew and you have more chance of seeing a unicorn downroute than one of those. The French are similar but not quite so bad. If you attempt to organise some sort of activity do not be surprised to see nobody but the flight crew turn up, despite assurances to the contrary.
The cabin crew have many phrases for 'no' including:
I'll see how I feel.
If I'm there I'm there.
I got up really early.
I just need to wash my hair first.
I have to ring my boyfriend (note works for both sexes)
They all mean they're not coming out but they don't want to say it.
On the plus side if the flight crew say they'll be there then they'll be there, on time, and possibly with some extra mates. There's always someone to have a beer with, they are generally willing to try new ideas, golfing, sailing, go-karting, etc are always popular downroute and you can find you end up spending a lot of cash having a great day out. Just occasionally you might even get some of the crew out then its even more fun.
On shorthaul you'll spend your days arriving everywhere late then having a couple of beers whilst looking intently at your watch to make sure you are way below the legal alcohol limit when you report the next day. Chances are you will not arrive with the cabin crew you'll depart with and they may be in a different hotel. Generally they are of the same breed as on long haul but as you have fewer of them you are less likely to see one socialising.