Acting like a 'yes man' will subconsciously put you in a certain bin in recruiters' head. Acting a bit fussy means you value yourself, you are confident so you know what you are doing. That naturally puts you above everyone else who follows the script and tries to please the recruiting side.
When interviewing you want to be relaxed, ask them questions. Make it a bit about them trying to sell you the position. Again its a subtle power dynamic.
Other one is not to give CVs to every single recruiting agency, as it often will result in burned CV. If two agencies forward your CV for same position, the company will often drop you automatically as they dont want to deal with litigation between agencies fighting over who got you the job.
Good luck