1. Learn what anxiety looks like - people can experience anxiety in different ways. The more you know, the better you can understand and help.
2. Work through the feelings - if someone is anxious about something, you can sit down and help them figure out what might be causing those feelings. Knowing the source and figuring out possible outcomes might help put their mind at ease.
3. Don't label them - if you want to avoid worse feelings, make sure they know you don't see them as your anxiety friend. Keep your relationship about your friendship instead of always making it about their anxiety.
4. Help them get professional help if needed - sometimes going to a professional is the best way to go. Let your loved one know it's not weird or bad at all to talk to someone and that there is a chance of feeling better.