There are multiple ways to view gifted tickets.
There is a column called Gift Status in the Tickets Tab of the purchaser's Patron Window that shows Gifted Tickets:
And the same column in the receiver's Patron Window shows:
The Household view shows more Gifted Tickets detail:
The Attendance Tab of the Play or Event Window will show the receiver's name and the gifted status:
The Maps Tab of the Play or Event Window will show the Gifted Ticket status when the mouse hovers over the seats in question: