If your LilBengal or Kitty have signs of depression, what can you do?
Play! Spending 10-15 minutes a day playing will get them stimulated, add to that hunting training by just hiding a few treats in the room, and be sure to praise them when finding said treat will keep them occupied and entertained.
Do know, that to begin with, your LilBengal may display disinterest and not be too engaged, but keep at it and they will eventually get into the swing of it all!