You want the wave near your turret so she can’t jump on you. The middle of the lane is also fine provided you space her properly. Try not to push the wave when you are farming with q.

3Q>E max If you are confident in the matchup, you can go a more aggressive rune setup and go pta and rush Kraken Slayer and look for solo kills. Run to lane as soon as the game starts and ward the bush near your turret. Camille can start e, pta, and ignite and just perma trade on you and zone you from xp. Stand away from walls. Don’t walk into her inner w range, she can just trade with auto qs and its losing. When she w’s, q her and run. Use your w to dodge her e. She can ult your ult so don’t rely on the damage to finish her off if you are both low.

Trading with Camille is not recommended pre six. Post six look for q auto e when her w is down especially if you are running pta.