Remember that everyone is different and unique. Show empathy to the autistic friend by being kind and respectful of their differences.

Use simple, direct communication. Speak slowly, look your friend in the eye and use clear words. This helps make communication more understandable.

 If you have difficulty communicating verbally, try using simple pictures, gestures or drawings to help with understanding. 

Some autistic people may be sensitive to touch or proximity. Respect their personal space and ask if they are comfortable before hugging or touching.

Sometimes it may take them longer to respond or engage in a conversation. Be patient and give them the time they need. 

Find out what their interests are and try to share activities that you both enjoy, such as games, hobbies or books.

Be inclusive when playing. Invite them to participate in games, activities and groups, always respecting their preferences.

If you don't understand something, don't be afraid to ask polite questions to find out how to help or interact better.

Some autistic people like to stick to consistent routines. If you know your friend follows a specific routine, try to fit in with it when possible. 

Remember that diversity is amazing and everyone has unique abilities. Foster an environment of acceptance and friendship where everyone is valued for who they are.