Can someone tell me the difference between Toward and Towards please ?
Thanks in advance
There's no difference in meaning.
You can develop your own preference, of course!
Generally, I'd recommend imitating the usage of those around you.

No difference.

I'm going towards you.
I'm going toward you.
Students: Are you brave enough to let our tutors analyse your pronunciation?
I have been told that there is a difference or at least a preference, at least in several cases...
 CalifJim's reply was promoted to an answer.