길고양이가 저를 잘 따르는거 같아서 고양이캔통조림을 샀는데 그냥 캔뚜껑만 따서 주면 되나요? 아니면 따로 덜어서 줘야 되나요?  
제가 걱정 하는것은 통조림이 날카로워서요..