Difficulty: Moderately Challenging
Um...do you brush?
Step1
First, think if this is a consistent issue or a one-time post-garlic dinner occurrance. If this person (lets say he's your boyfriend) continuously smell and looks messily urban (not purposefully) prepare yourself for a sit down.
Step2
Try to encourage, through a loving manner, to brush your teeth together. Or, when you're at his house, ask if he has a comb and say that you love to have your hair combed, and maybe he'd love it, too. Try offering hygiene tips through a friendly, playful manner.
Step3
After brushing, combing and perhaps bathing together, let the compliments fly. Tell him how great he smells, how amazing he tastes, and how handsome he looks.
Step4
See if his patterns change. If he continues down the unkempt path, then try asking him what his deal is. Does he like the grunge look or does he really have bad habits? Say, "Some days, you really put yourself together and then other days you seem to roll out of bed and not do the necessary hygiene tasks, like brush your teeth. Are you OK?"
Step5
See how he responds. Share your care, concern and love but don't be too motherly. Usually hygiene comes from how a person is raised so maybe he never learned. Or if this isn't the case, maybe he's feeling blue or under the weather. Survey the scene, and see if your actions change his hygiene.