small talk 
noun [mass noun]
Polite conversation about unimportant or uncontroversial matters, especially as engaged in on social occasions: propriety required that he face these people and make small talk...
- On social occasions, small talk on neutral topics is appropriate and modest gifts are given.
- I'm never very good in those situations - polite small talk doesn't agree with me.
- He smiled as he set down a tray of mugs in front of a few ladies, who giggled at him and made polite small talk.
- prehistory
- prehnite
- prehnitic acid
- prehominid
- prehospital
- prehuman
- prehyoid
- prehypertension
- prehypertensive
- pre-ictal
- pre-ignition
- preimage
- pre-imagination
- pre-imagine
- pre-imagined
- preimmune
- preimplantation
- pre-impregnate
- pre-impregnated
- pre-impregnation
- pre-in
- pre-incarnate
- control key
- controllability
- controllable