Hi Steve, you won't need many, those of us who use certain Maltese words and phrases only use them through politeness and based on experience, however the following may be of interest to you.
Bongu (bonjew) = good morning
Sahha (Sa Ha) = good bye
Caw (Chow) = good bye or so long etc
Kemm = how much
Jekk joghbok ( yek yodz bok) = please
Grazzi (Gratsi) = thank you
Hafna = very much or very ie Grazzi hafna = thank you very much
Iva ( Eeva) = yes
Leh (lay) = no
Tajjeb ( tayep) = good
Hazine (hazeen) = bad
Illum ( ee loom) = today
Ghada ( ardar) = tommorow
Il Fil - ghaxija (eel fee lashyar) this evening
Il Leyl ( eelail) = tonight
Xemx (shemsh) = sun
Shana (sanar) = hot
Kiesah ( kee ay zar) = cold
Xita (sheetar) = rain
I could go on indeffinitely however if there are any particular words or phrases you want ask and I will do my very best to translate it for you.
Regards
Sliema2