Tips for a Neurotypical person on interacting with a Neurodivergent friend

I'm a Neurotypical person and have an online friend that I'm pretty sure has Aspergers. They have not told me that they have Aspergers. I will be meeting them in person this year. I've been reading up on Aspergers but would appreciate any advice. I believe in treating everybody the same but dont want to do anything that might upset them or make them feel uncomfortable. I would like to make it easier for them to get to know me better. I really like this person.