1. Make yourself available
When you are in a waiting room, make eye contact and greet people. If you just look at your phone, people may think you don't want to talk.
2. Start the conversation
If you really want to make new friends, you need to talk to people. You can talk about something simple like the weather.
3. Find something in common
During the conversation, find something that you both have in common. For example, do you like sports and the other person too? Talk about it!
4. Be a good listener
Once the conversation starts, let people finish what they are saying. When you interrupt them time after time, they will probably stop talking.
5. Look for opportunities everywhere
The more you talk to new people, the more comfortable you will feel. It will increase your chances to have new friends.