It is believed that man should make the first step: to ask out for dinner, dancing or a date. Men are considered to be more confident thus less afraid to get rejected. Therefore if your man is shy and timid while you are quite decisive and confident then take the initiative in your own hands. And nobody will think that you have bad manners.
There is no problem with white dance. You have “legitimate” right to invite whoever you like. However if this dance is not white you can still invite the man you like if you are not afraid of refusal. If this man is not an arrogant pig or a handy kept he will almost certainly accept your invitation. If you are shy by nature then try to find a way to show him that you would like to dance with him. You can mention that it’s one of your favorite songs and it perfect for dancing while looking at dancing people on the floor. Any man smart man will understand the hint and ask you for a dance. Don’t invite a stranger if you are already with somebody, even if it is a white dance. If you can’t help it then at least, ask your man first before you invite the other.

A date

There is nothing shocking in inviting a man for a date. You are not asking him to do something indecent; you just want to spend some time with him. If he refuses try to stay calm and tactful. If doesn’t give you a reason for refusal, don’t attack him with questions: you can put him and yourself in awkward situation (he might have an appointment at his doctor). If he has other plans then do not make them to change them. Don’t whine and get upset or make ultimatums like: “if you don’t go out with me tonight you will never see me again!” It is neither polite nor effective. Besides you won’t ne able to ask him out again.

A restaurant.

Well, it all depends on how well you know this man. If you’ve been acquainted for a decade then and you know that he can afford it then there is nothing bad in asking him for dinner. It’s different with the first date. If you’ve been wondering around the town for couple hours dyeing from hunger and he hasn’t invite you to eat something then he must be broke. You can invite him instead, but keep in mind that in this case you will pay for dinner. However you risk putting him in an awkward situation since men supposed to pay for dinner. He will probably agree to pay his share and you will have to see him ordering starter as a main dish. He might have to find excuses: allergy or a special diet.

Therefore it is better to give him a hint that you could eat something and leave decision for him. However if you are starving then it is better to go home.

Other articles:

Misalliance when husband is younger

Mistakes women make in relationship with men

Body language or how to understand if he likes you