My Profile
On the navigation bar, click your avatar and choose My profile:

Most information stored in your profile is readily available to all organization members, so they can quickly find out:
your schedule and availability (planned and current absences and meetings)
your contact details (email, phone, messengers)
your office location and work hours
what teams you're on and your positions in those teams
who your managers (Team Leads) are
what projects you're involved in
In addition to regular entries, your profile may contain fields marked as Private. The information in private fields is only visible to you and authorized members (e.g. System Administrator).
Edit profile
On the profile page sidebar, choose Profile.
Use tabs on top to edit the different parts of the profile:
Choose Personal to edit:
first and last name, username
birthday
gender
a short personal introduction
profile picture (avatar) — click the placeholder image and follow the instructions
Choose Contacts to edit the contact information (phone numbers, email, messengers, websites)
Choose Languages to add or remove the languages you speek.
When you're finished editing the profile, click Save.
Set your location and working days
Your location and working days/hours is important data that will be taken into account for arranging meetings, subscriptions, notifications, etc. Make sure to keep it updated.
To specify or edit your location:
On the profile page sidebar, choose Locations.
Click Add location and choose it from the list. Optionally, specify the time period in this location.
You can edit or delete the existing location or move from it to a new one using the corresponding controls. Optionally, specify the time period in this location.
To specify your weekly work schedule (work days and hours):
On the profile page sidebar, choose Working Days.
Click New period, then specify working days and hours for the selected period. Several periods can be specified for one person.
You can edit or delete the existing periods using the corresponding controls.
What you can do on your profile page
From the profile sidebar you can view and manage the following parts of your Space environment:
Teams— Request to leave your team or join another team.
Schedule— manage your absences, meetings, personal calendar, and working schedule .
Workspace Settings— Manage your notification preferences and personal settings.
Security Settings—Change your password and view login history. View your permissions. Set up Git SSH keys and HTTP password for commiting to repositories. View your authorized Applications.
Apps— Install Space apps to your mobil devices or desktop.

Find another person's profile
Click or press Ctrl+K and start typing the person's name.
Once on the profile page, you can contact the person by clicking Chat with... under the profile picture.