Over half the Jews we help with tefillin at the Kotel initially refuse. So how do we get them? Each time is different and has to be made to fit the Jew we are reaching out to. The more experienced you get the more you succeed.

Some of the things that I have found worked are;

Do not ask them if they want to put on tefillin because they don't. Instead say, 'Come put on tefillin.'

They often refuse so we respond with whatever we think will work, but to the one who says he does not believe, I answer. 'You don't need belief to do it. The Torah says, 'we will do it then we will understand'. Doing it brings the understanding,' and I gently pull their arm or bring the straps to their hand and see if they let me continue as they often do. "Assumed consent" is an old sales technique.