Then, when the seizure is done, don't try to make them get up asap.
That could lead to a new seizure, so be careful. They need time.
You can ask if they need anything, you just have to follow and respect what they say.
After a seizure, I stay down for a while, then my fiancee helps me sit a bit longer and then she helps me get up. Don't do it in a hurry.