[fidelis]

Looks to me like they are just having a good time, Bill clapping while laughing at something at what he or someone else just said and clowning around with Hilary.

Could be he's just acting relaxed for the cameras (he's had years of practice at it), but even evil people are capable of clowning around as the occasion arises.

[Jamestown1630]

Neither of them are walking very well these days.