Don't call her too frequently or her respect for you will drop.
You can date as many girls as you like, but the more you take on the harder it becomes.
When her opinion of a specific place falls below 25, she refuses to go there anymore.
In order to get the maximum success out of a date, therefore, you should refer to the initial opinions of all the activities listed in the table below, and try to vary the activities from date-to-date.
If your friend calls but you aren't able to hang out, respond positively and then call immediatley afterwards to cancel the activity. There are five different girls which Niko can date, two of which are unlocked automatically during the storyline, and the rest of which are available via the in-game internet.
Call one of the girls to arrange a date, then pick her up within 1 hour (2 real-time minutes) and take her to one of the activities shown on the map.
(There is one more girl you can date on Dance Maisonette 9, & lovemeet.com, she's a stripper but to date her, one of the missions in the game will give you the option to kill playboy X or Dwayne. It's really the only way.) Michelle is the first girlfriend you have in the game.Friendship Unlocked: Michelle becomes your girlfriend after the mission "Three's a Crowd." You can no longer date Michelle after "The Snow Storm." Time Available: You can call Michelle between am-pm.Likes & Dislikes: Each girl has a unique set of preferences that you should adhere to in order to get the most out of a date.Note that you cannot date a girl when you are on a mission.After a date, you need to wait 5 hours (10 real-time minutes) before calling your girlfriend again.Each girl has an 'initial opinion' of each activity that is available, and each time you take her to a specific place her opinion of it drops by 5, while her opinion of all similar places drops by 1.