lobbyist influencer manager activist motivator publicist adviser commentator propagandist representative spokesperson mouthpiece salesperson spinster troubleshooter agent helper promoter stimulus influence catalyst inspiration cause fillip impetus instigation instigator motivation motive reason stimulant stimulator carrot impulse inducement incentive incitement incitation spur stimulation propellant kick boost source purpose mainspring causation determinant end aim origin basis fountain fount beginning generator root enticer allurer siren charmer coaxer tempter wheedler flirt seducer coquette heartbreaker stud playboy philanderer roué wolf lover libertine rake enchanter smoothie fascinator baiter solicitor seductress courtesan temptress enchantress vamp womanizer gallant lecher deceiver trifler adulterer dallier goat lech womaniser gun firearm piece shooter