Confident people can hear “no” without needing a whole speech to recover.

A refusal only needs a long recovery when it was carrying more than the request did. If a no means something about your worth, then every one of them becomes an event to be processed for days. When it simply means no, you can ask for more things more often and get on with the afternoon.

Try asking for something small and accepting the answer in one sentence, whichever way it goes. Do not justify, renegotiate or apologize for having asked. The ease you want comes from collecting refusals that turned out to cost nothing.