There are two females in the game you must date—Mallorie's 'friend' Michelle and the O'Reary boys' sister Kate—but other than that, dating is completely optional.
However, there's a lot of fun to be had by partaking in the Liberty City singles scene.
Niko is unable to use social networking sites, only communicating through his standard email.
These are mostly meant as comedy pieces, but surfing them carefully enough reveals information about two characters Niko eventually meets, Eddie Low and Alexandra Chilton.
The ability to date girlfriends, introduced in Grand Theft Auto: San Andreas, returns in Grand Theft Auto IV.
Like in GTA San Andreas, two of the girlfriends are introduced during the storyline.
The relationship aspect of Grand Theft Auto IV is perhaps one of the most nebulous areas of this epic game.
However, that shouldn't daunt you from building as many relationships as you can, because they happen to provide some of the deeper and more rewarding experiences Grand Theft Auto IV has to offer.
The first type of relationship is any that Niko has with various females he encounters.
These relationships take on a more light-hearted and pseudo-romantic tone and are completely optional for the most part.
To have a successful date Niko must cater to the women's tastes in three areas; clothing, vehicle, and how fancy the date is.
Each woman has different tastes and will respond accordingly.
(However, wearing the wrong clothing or having the wrong car doesn't actually result in a date failing, only that the girlfriend makes negative (or snide) comments.) Assuming no failed dates, Niko can usually get to enjoy "coffee" (i.e.