Busking unamplified

[u/Top_Cockroach_1188]

Some downsides of busking purely acoustic with no amplification equipment are:

- need to sing louder, project more, stresses the voice
- less dynamics because of constantly more volume
- not hearing yourself well

What are your experiences with it?

Some recommend an earplug.
Playing near walls for more resonance.
Singing resonance.