Chocolates
Sweets, and especially chocolates, are among the most traditional dating presents. Dating partners love to give and receive chocolates. So, if you don't know what to buy for your dating partner, get a nice box of chocolates.
Flowers
Flowers are always a great dating gift for your female friend. However, try and find out what her favorite flowers are. If this isn't a first date, try and ask her for the next date. If it is a first date, find out during a phone conversation, or through a mutual friend.
Perfumes
Perfume or cologne is another excellent dating gift. Think about how important smell is, and think about how you are increasing your dating chances by wearing the one that he/she likes best. Your dating partner may not know you did it on purpose but it will surely bring them closer.
Jewelry
Even if they have little value, pieces of jewelry or bijouterie are always the most wanted dating gift among girls. When you have been dating a girl for a year, for example, you can get her a pair of earrings or a necklace for your anniversary. If you have been dating for more than two years it's time to buy a nice ring for showing your commitment to your dating partner.