How do you tell somebody's a hooker?
 

Male or female.

try asking them.

edit: oh, there's a poll added.

The "I shag for money" badge?

usualy they wave a note (i.e money - legal tender) around their mid section, plus if its a rent-boy yr after, just look for George Michael cuz he's probably beaten you to it.

ask them if you can pay with Marmalade.

ask if they want 'business'.

in germany they just come up to you in the street and ask right away if you want sex. no talking just straight away the first thing they say.

Ask them if they accept crisps as a method of payment.

Won't they be in the hooker shop?

or monster munch.

porky i love your avatar.

Thanks jonboy but you're obviously just after my passport.

they often have a skanky posture

Ask your chamber of commerce for a directory. The best cities publish a Get to Know Your Local Hookers guidebook. It's usually free.

are we talking "ladies of the night" or TJ Hooker and his goodtimes?? cuz i know TJ Hooker and he dont like when people get them mixed up.

What does a skanky posture look like?

you fuck them, then ask.

other
they ask you if you're "looking for a date"

By the look in their eyes, and the smell of their cheap deodorant.

if they look like me.

show them your fake police badge and ask firmly but politely.

if they say "I love you a long time."