The only thing I would say is that the likes or Firmino and possibly Coutinho might not have the best English to converse, so if she is after a chat or to spend some time with them, maybe it might be best to chose someone with a better grasp of the language, like Lucas or Lovren.
I'd go for her favourite player, Coutinho, and one of the English lads - either Sturridge or Lallana if she is meeting Henderson anyway.
If it's just for a photo, then I can't imagine many of them being dicks. I reckon Mane would be quite jovial.