1. You have to be extremely careful to stay tuned up in the right way. If you are out of tune, you will be easily identified by others. An electronic tuner is now easily available for little money which can help you to catch up the tunes.
2. New strings are needed when your guitar is not staying in tune or when you are playing up the neck. If the guitar is out of tune with new strings get the intonation adjusted.
3. Give as much attention as possible to what you should not as the things you have to do. The holes that have to be left will make you play better.
4. Always take care not to over play the notes. The audience will always hear the sound that was nit required to be played. This unnecessary sounds will withheld you from further growth.
5. Never take alcohol when you are playing guitar. The effect of alcohol will make you sound badly and look stupid. Some may think that they can perform better under the influence of alcohol but no one have ever succeeded in playing guitar under alcohol.
6. Plan and study what you are going to play. Understand the context to play however it fits to the tune. You should identify the chord being played and the key to be used. The role of the chord for a particular key also should be understood.
7. Play the guitar within your ability. People have different styles and talents. The length of the fingers and the flexibility will vary. If you are trying to play like someone who is playing better than you; you are doing the worst thing in the life.
8. Allow the song to rule over the play. Some guitarists think they are indispensable and try to over do. The sound of the guitar will be projected affecting the show.
8 Things You Must Know to Be a Better Guitar Player By Priyankayog Bhatt