Different industries and positions will require different skill sets from potential employees. You should emphasize (or omit) certain aspects on your CV based on what the job requirements are.
Could include certificates, awards, letters, etc.
Employers like people who are driven and motivated.
Since employers probably have to consider a very large number of applications, they won’t have time to carefully read every small detail in the CVs. Having a short CV that includes all your qualities would stand out more to the employer.
By providing evidence of a particular skill that will help convince the employer of your competence and professional suitability e.g. for an aspiring travel agent, organizing cycling tours, reading travel guides.
It is generally basic etiquette to not mention your desired salary in the early stages of your application, because it would prevent employers from contacting you if they deem the figure too high or low.
For example, if you are applying for a job in the field of psychological research, you should only include relevant courses (i.e. psychology, statistics, etc.) where you received good results.
For example, in the U.S., it is common for people to include their height and weight in their CV to indicate that they are physically healthy and able to work. In Hong Kong, however, this type of information is unnecessary as it just adds fluff to your CV.
Remember that these activities and experiences should pander towards the requirements of a particular employer. In other words, they should be relevant to the job that you are applying for.