Here’s how to invite participants with a quick Google Calendar invite.
Log intoGoogle Calendarin a surfing app with your Google account.
Create an event in Google Calendar or select an existing event.

pick the pencil icon (Edit event) in the pop-up overlay.
The Events detail screen is split into two panes:Event Detailson the left andGuestson the right.
Go toGuestsand start typing the event participant’s name or email address.

snag the head silhouette icon next to a guest to mark them as optional.
Optional guests can choose to attend the event if they desire.
Use the auto-suggestions in the drop-down list to compile the list of participants.

you might also pop in an email address to invite people who are not in your contacts list.
SelectSaveto send the Google Calendar invite to all the listed event participants.
ChooseSendwhen Google prompts you again with a confirmation message.

Note:
you could control the level of interaction an attendee can have with the calendar invite.
The steps and screenshots below are on iOS.
SelectEdit(the pencil icon).

Enter the name or email address of the people you want to invite.
Guests can send a RSVP reply to the event invite with a “Yes” or “No”.
choose the event in Google Calendar and choose the pencil icon to edit the event.

The event will be removed from their Google Calendar.
Adding birthdays to your Google Calendarcan be done by simply updating your Google Contacts with birthday information.
Though it may require some initial prep work if the necessary options haven’t been set up yet.
Once your Google Calendar is set up,adding a new calendaris fairly simple.
This way you’re able to designate multiple overlapping calendars for various parts of your life (i.e.
work, vacation, social events, etc).