All of these kinds of tablets are crushable, the question is, "do they gel up?"
The easiest way to find the answer is to split the pill and try to dissolve it in water, if it becomes a waxy gel mess then you pretty much have no choice but to take them orally.
For your first time you should just take half of a 20mg pill, uncrushed. If that doesn't tickle your fancy and the pills aren't the gel kind then i'd crush up the other half, take something to make your stomach contents less acidic, like tums, then 40 min to an hour later swallow the crushed up pill.
If you still aren't satisfied make sure you wait at least a full day before upping your dose so you don't waste pills and increase your tolerance. If you take multiple doses in one day it'll decrease the effects to a degree, basically it won't hit you as hard but don't mistake that statement as, "you can handle a much higher dose if you dose multiple times a day."
I'd increase your dose by 5-10mg until you reach your desired dose. Good luck, stay safe.