What should I expect at lifegaurding recertification?

Hi, it's been a while since I've lifegaurded and I'm going to get recertified today. It's been a while, so I'm probably a bit rusty on my skills. Will I be expected to know everything more or less perfectly or will they walk me through it/ refresh me. What will I be required to do? I'm not doing CPR/ first aid or AED today, just waterfront.