Dic: take the floor, take to the floor

• When I take the floor, I'll make a short speech.
• The last time you had the floor, you talked for an hour.
• They took the floor for the foxtrot.
• When the band played, everyone took the floor.

take the floor:

1. Fig. to stand up and address the audience.
2. Fig. to go to the dance floor in order to dance.

... http://idioms.thefreedictionary.com/take+the+floor

Cf. If you take the floor, you start speaking in a debate or discussion. If you are given the floor, you are allowed to do this.

• Ministers took the floor to denounce the decision to suspend constitutional rule.
• Only members would be given the floor.

If you take to the floor, you start dancing at a dance or disco.

... Cobuild