It depends on the girls. Not everyone will come on to you immediately the minute you walk in. Some will not approach you at all and wait for you to come. The girls work on their own terms regarding who to talk to there.
Best thing to do is to tell the girls that you need some time to decide. It is not good to talk their ear off and then reject them. If you engage in a conversation with them that lasts longer than a few minutes you should commit to a room or at least be honest.
And very true, they may try to push you into something fast and it is best to not allow that. Tell them that you will make the decision on your own. Stay polite and it’ll all work out fine.