Guys are usually standing next to their dates or holding their hands, or even their hip.

Not Will Smith.

I don't remember.

He was probably pointing out body thetans....

Wikipedia says he is not a scientologist:

Smith has said he has studied multiple religions, including Scientology, and he has said many complimentary things about Scientology and other faiths. Despite his praise of Scientology, Smith said "I just think a lot of the ideas in Scientology are brilliant and revolutionary and non-religious" and "Ninety-eight percent of the principles in Scientology are identical to the principles of the Bible.... I don't think that because the word someone uses for spirit is 'thetan' that the definition becomes any different." He has denied having joined the Church of Scientology, saying "I am a Christian. I am a student of all religions, and I respect all people and all paths."