There are a few ways to tell if someone is using Hangouts on their Android phone. One way is to look at the app’s activity logs. If there are any unusual or suspicious activities happening in the app’s logs, it might be worth checking out. Another way to tell if someone is using Hangouts on their Android phone is by looking at their call logs. If they are making a lot of calls or sending a lot of messages, it might be worth checking out.
