If you receive a notification that you have been recommended for a task, it means that the Poster is interested in receiving an offer from you.
If you think you're suitable for the task and interested in completing it, go ahead an make an offer on the task. Should you have any questions about the task, you can post your question in the comments section of the task page.
Should you not wish to make an offer on the task, we encourage you to let the Poster. This helps to build rapport with the Poster and increases your chances of being considered for future tasks posted by the Poster.