Commands to someone you call टू tu just use the verb stem –बैठ baith, बोल bol, जा ja, आ aa, कह kah, खा kha,कर kar. दे de.ले Ie. पि pi. As their shortness suggests, these टू tu commands are very blunt (or, if you prefer, sharp!) - 'Speak!' 'Sit!'; used out of context, they could easily give offence. Care needed here!