N1

折には

When, Occasion, Opportunity, Time

あははは

、

で

はわ

何なん

か

の

折おり

に

はわ

ぜひ

Hahaha, then please do (join us/come) when you have a chance.

を機に

Opportunity, Occasion

にあたり

When, When doing something, On the occasion, At the time

に際して

On the occasion of, At the time of

につけ

Whenever, Every time something happens

〜ところに

At the time, When, While, Timing