As a team owner, you hold the power to decide who is going to be the member of your team. There are two ways you can add team members to your team.

Click on My Teams page, and then choose the team you would like to add a member to.

Click on "Manage Team" in the upper right corner.

Choose the team members tab, and click on "Invite new team member".

Enter your new team member's email and name and confirm by clicking on "Invite new team member".

The new team member will be confirmed and visible on the next screen.

Select "Manage account", then click on "Team Members" tab, and "Invite new team member".

All next steps are the same as described above.