Let's say I am supposed to meet my friend and I want to make sure that he is at home when I arrive, so I call him and ask
Are you out right now?
or
Are you outside right now?
The first expression sounds okay but what I want to know is that what will be interpretation of second expression and in what context it should be used.
Best Answer
In American English...
This asks if they are out anywhere; not specifically outdoors. If your friends are at a restaurant or bar, you would ask them this.
This is usually asked by you to your friend who is coming to your place/location or giving you a ride. You ask this to see if they have arrived.
You could also ask this to learn if they are outdoors (for example, you could hear wind in the background and ask 'Are you outside?' to confirm that thought).
Since it sounds like you are the one who is arriving to your friend's house, you could ask the following: