no using it to force-feed a healing potion from a safe distance (those are magical items).
Prestidigitation is No.1
But if you get delayed even slightly the spell will wear off while you're still interacting with the guard. Or the guard will raise the alarm when he realises the old man had cast a spell on him to sneak in. The risks of using Friends pretty much never justify the rewards, unless you have a kind DM.Cast disguise self, cast friends on the guard to get into the maguffin place, walk around the corner and dismiss DS and chuckle while the guard searches frantically for the 'old man' who dummied him. That's my basic playbook.
It’s a sorely under-rated cantrip. I wouldn’t rank it among my top 5, but it’s still a great one.I suspect I'll be a little lonely voting for Friends, but I always pair it with disguise and/or alter self, at which point it's dead sexy. For 3rd pillar play anyway.
I don’t think it works that way...Presty to create a focus so that I don’t have to carry one.
Personally, I rule that the lists of things those three spells can do are just examples and not exhaustive, and allow all three to do pretty much any small, harmless magic trick as long as it’s on-theme.I know most people like Prestidigitation over Thaumaturgy and Druidcraft, and I don't deny that it's more versatile. But I personally find Thaumaturgy more fun. Booming voice, tremors, glowing red eyes, ominous whispers? Gold.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.