[baakyocalder]

There are a lot of good foci, which they call instruments, in Mage 20th Anniversary. While there's a ton of material on magical practices there, I do like the overall tiers of paradigm (how you believe the world is and how it works) practice (how you work the world and the mythic threads you pull on) and instruments (the memes or items you use to do what you do).

Any Order of Hermes mage should have picked up social domination tricks like eye contact and name-dropping through their apprenticeship. For Mind, the key to controlling one's own is focus and poetry and other ways to get people to work a certain way work well for affecting others.

For the numerically inclined, keep a stack of numbers and cards around and you can start getting people to think about the connections between them. Keep showing the same number and then ask someone to pick a number and they are more likely to pick it.