“f—k off” is a perfectly appropriate response. Appearance helps too. I have a shaved head, lift weights, have “resting @$$hole face” and generally don’t look like food. I tend to get left alone.
I have to ask because it is 2022. Are you a guy or a gal? LOL
I was cursed with the ‘resting bitch face’ too... bums don’t even stop me to ask for money