In addition to using people first language, it's also important to think about how you interact with people with disabilities (this is great information for interacting with anyone respectfully too!).
Treat Adults as Adults
Talk to people with disabilities as you would anyone else, at their age level and not below.
Talking About a Person's Disability
Sharing information about a disability is only at the choosing of the individual. Some people are willing, but some are not. Please respect a person's choice to disclose on their terms.
Ask Before Offering Assistance
People with disabilities live with their bodies every day, so don't assume they need help. Ask first.