Chronokinesis techs

Here is a technique I tried, and so far I think it works pretty good (maybe this is the best for the start)

Tech 1:

Get a clock and listen to the ticks, concentrate on the gaps between the ticks. Make them longer, hear them getting longer and longer.
After doing this for a few minutes you should see differences in the way people move and speeds of their talking. It will wear off after a few minutes, depends how developed you are.

To speed up time you cocentrate on the gaps between ticks getting shorter.

If anyone has some comments (or know some other technique) please post it here

Really? How long this should be done before you notice the change?