Between those two replies, I'd like to point out that IF you're using the custom spell rules in Street Magic, you can save two drain by tacking on a 'caster only' limiter to the spell. Sure, you can't feel up a party member to give them a mana-dar of some sort, but hey, two drain.
.... of course, if you're willing to bump the drain up by two, there are some amusing applications for changing various Detect Xyz spells from Touch to LOS. A mage could give anyone they could see a force 1(which needs 4 hits on a perception test to spot the casting) Detect X(Enemies, Life, Spirits, Singles, Idiots, non-humans - the list goes on) and watch them tweak. Or a wizard hooked up to a Mage Sight Security System(arsenal) could use the same trick and some custom formulae to buff, heal and reinforce security personell on the fly. Just something to think about.
.... of course, if you're willing to bump the drain up by two, there are some amusing applications for changing various Detect Xyz spells from Touch to LOS. A mage could give anyone they could see a force 1(which needs 4 hits on a perception test to spot the casting) Detect X(Enemies, Life, Spirits, Singles, Idiots, non-humans - the list goes on) and watch them tweak. Or a wizard hooked up to a Mage Sight Security System(arsenal) could use the same trick and some custom formulae to buff, heal and reinforce security personell on the fly. Just something to think about.
It depends on how the mage is doing the buffing. All Health spells are touch range, you can't make them LOS even with the custom spell creation rules, so no healing through mage sight goggles and no buffing with anything except manipulation spells.