I don't think any wrong in locking lips in the public places which is going to be common. Previously shaking hands with girls was seen as wrong, now it is not so. Frinds! we should become more free in expressing the things which are in our mind. If someone stops you in doing so with some force that will come out in different way which may be arrogant.
I think locking lips with lips may be more affactionate than shaking hands. If we stop this kind of thing in public places, people who wants to do that will waste time in searching secret places, that altogether affects social welfare and there are every chance to cross limits in secret places. So be fragmtic and don't see the things with so called traditional glasses.
