If this is sth small, ie beer, you can buy it first. Then, when you both want more, say "Hey, now it is your turn" and make her go and bring beer to you. Taking from her money is a bit awkward for me, so I always try to make her to move her ass and wait
Therefore, she can see that you are not sime kind of ass-kisser. But some girls will not go.Also, remember it is a date, so you don't have to push "I am the prize" attitude to the extremum, cause you may come as jerk. Especially when you will be on next dates and you know that she has little money, it is kind to buy beer or sth for her. You are already interested in each other, it is sometimes better to pay for her than have awkward situation like "You don't have money, you don't get a drink".
But be shure to remind her "Now your turn to pay" etc from time to time.
Another thing is small games. 5 questions etc... the one who loose is paying for sth. But do not always win!
This applies to non-expensive things.
When it comes to tickets for concert or dinner, you should both decide before event. And I would avoid such dilemmas on early dates. Keep it light and fun.