1. Accepting and taking trips happens the same way as usual.
2. The app will show you where your local airport’s approved pickup or dropoff location is. It might be different from where you’d go if you weren’t driving with Uber; airports sometimes have designated zones for Uber and other ridesharing services.
3. If you’re dropping off a rider, you can ask them if their flight is domestic or international and what airline they’re flying, then you can look for signs that match what they tell you.