I think it would be better to avoid all three- actually four of these before marriage. Plus keep a good distance of four feet between you (if you have your arm extended out and still touching then it's probably a good idea to back off another foot or depending the length of your arm. After engagement its still a hard NO with emphasis on this whole sentice and should avoided at all cost. Hugging may sound like an innocent and even little side hugs and still before marriage should be avoided. Now, after the pastor says that you may kiss then that's ok but it should only last for a second though you are still married. Holding hands or kissing in public even in marriage should be avoided for it clearly sends the wrong message to others who will think that's okay and it really not. Whatever you dob make sure you keep it at home in your room and keep it private. Emphasis on that whole sentence as well. Not trying to be an extremist but when it says flee from sexual immorality then that should be taken very seriously.