Haha, unfortunately you can't check it. You can use "exiva" to search for players, but they aren't informed. Well, unless you do it near them or you are a streamer and you do it on twitch where everyone can see. There is also an option that people in the area will write to you with the text "hey man, X exivises you"
PS. On non pvp worlds you can OFF exiva in settings, and then even someone won't be able to check where you are.