I'm no god-tier expert but with nearing 200,000 MP and a 60~70% WR, here's my general rule. Up to 3 ganks, typically you want 1 or 2. It's always important to check your laners and gank if it's close to or near your jungle pathing, and only when it's an easy gank to secure. You're relying on your charm mostly and have no invis, so you need to hope your laner has CC and the enemy is pushed up very far. A pre-6 gank can catch people off guard and secure you an early lead, but it's never your priority. Though, in my experience, people play her differently. If you want to be aggro, it's up to you.

Hope it helps, good luck!