To change your personal info, go to account settings by clicking on the Profile icon [1] and select the «Personal info» [2] section.

Here you can add to or change your personal information in the corresponding fields:
[3] Your first name
[4] Your gender
[5] Date of birth
You can also add your photo [6] or a logo to give your profile a complete look. Once finished, be sure to click «Save changes» [7].