is not telling people that you are fasting.
Sharing your willingness to either be (a) very kind (think volunteer work) or (b) do challenging things (i.e., fasting) are bankable ways to gain “social credibility.” While it’s completely natural to covet esteem, being overly driven by this desire is to remove a pureness in the activity. Are you doing this because you want to do it, or because you think other people will be impressed?
The less external validation you need, the greater the inner peace you will have.