How to Use "btw" with Example Sentences

1. Btw , " gay " is a derogatory term .
2. Btw , take good care of yourself as you 've just got sick .
3. Btw , I 'm asian , so I don 't count .
4. Btw , 6 blocks is an indication of defensive liability ?
5. Btw , the translation software is terrible , and I try my best to understand what you say .