Some jobs show up with an extra button called ask for help. In addition to the first job in all episodes in Moscow and Bangkok. There are allso jobs in both Cuba and NY that lets you ask for help. However this button is not visible until you try to do the job yourself once. You can ask for help on jobs one time every 24 hours so make a good choice when you do. Up to 10 people can help you on a job and they will recive XP points and $ for doing so. The amount varies on different jobs , but in general the further on in the city you are the more the job will output.