I think she gets tickled on her sides at very end of the scene:
http://www.youtube.com/ watch?v=CsZ8VDxmmKA
http://www.youtube.com/ watch?v=CsZ8VDxmmKA
It's the last episode of season 3, the scene where Hoyt asks Jessica to marry him in the new house he wants them to live in together. After she says yes, he picks her up and she starts giggling, then shouts "NO!" and giggling even more and kicking her legs. You can't see the tickling but it's obvious what his hand is doing. They reran the episode last night before the premiere of Season 4 so I came here to see if it had been posted and here we are. I believe it was Jim Parrack being spontaneous and actually tickling Deborah Ann Woll. It looks totally realistic.It's been taken down, could someone repost or tell us what episode it was?