Level 1 is the least severe autism diagnosis. People in this category have social difficulties that require some support.They can find it difficult to initiate conversations with others and may respond inappropriately or lose interest quickly. As a result, it can be challenging for them to make friends, especially without the right support.People with level 1 autism may also show inflexible behaviors. It can be difficult for them to cope with changing situations or contexts, such as new environments. They may need help with organization and planning.