If your hunting companions cannot see you on the map, make sure that a hunt has started in the app and that you are taking part in it. Check and make sure that Publish my position is on in the right-hand menu in the app.
If you are still not visible on the map, check and make sure that location services are switched on in your phone and that WeHunt is authorised to use your location in the phone’s settings.
* Want to know how to start a hunt? Look here.