There's something of an awkward pause before Ari realises that no, Elsie isn't going to act on her own initiative.

'There's enough room here now, just set it down. Then other people can take some, and you can take from the dishes that they brought.' That's how it works, as she understands it. She gives Elsie an encouraging look. 'I can get you a plate? Lots of these dishes weren't familiar to me, but this setup means it's easy to try a little and see if you like it.'