Wear this.
https://www.amazon.com/Immigration-Enforcement-Embroidered-Baseball-Cap/dp/B003MJ2UYA/ref=as_li_ss_tl?ie=UTF8&qid=1489978156&sr=8-1&keywords=ICE+HAT&linkCode=ll1&tag=insta0c-20&linkId=a0dcaa6fb1870d3ffc2d4957b771c1e9
While working construction, some guy walked in the door and hollered, "Green Card!"
About 1/3rd of the guys on the job vanished out the doors & windows... not a drywaller, mudder or painter was left - they dropped everything and ran.