How to Use "enthusiast" with Example Sentences

1. Remember I 'm a long-time linux enthusiast .
2. Policeman and historical enthusiast nigel amos played the part of duke william .
3. As every space enthusiast knows , we will land people on mars within 20 years .
4. Not to mention , there are plenty of diy options for the home improvement enthusiast .
5. A cosplay enthusiast from germany poses at the japan expo in paris , july 4 , 2010 .