keep up with them and remind them frequently if they need to go also having underwear with their favorite cartoon character on them helps as well they usually are afraid of getting it dirty and lastly if their aim is off try putting some cheerios inside the bowl they will aim for that. Above all have patience with them it can frustrating ive been through that twice cant imagine going through it at the same time though good luck and before i for get when you go show them it helps thats what i did with my kids