In a large mixing bowl, combine the chickpeas, tuna, cucumber, and tomato. Set aside.
In a small mixing bowl, combine the olive oil, balsamic, lemon, lime, honey, and salt to taste. Whisk until combined, then pour over the chickpea mixture. Toss with your hands and marinate for 20 minutes.
After the chickpeas have been sitting, add in the chopped dill and parsley. Mix well, and adjust salt if needed.
Serve cold, and garnish with fresh pieces of dill, cucumber, tomato, and feta if desired.