* Reminisce is a verb, meaning to think about past experiences and events with pleasure.
* Reminiscing is the present participle of the verb "reminisce," often used in progressive tenses or as a gerund (a verb acting as a noun).
Here are some examples:
* "We reminisced about our childhood summers." (Verb)
* "They were reminiscing about their college days." (Present participle)
* "Reminiscing about old times can be a wonderful way to connect with loved ones." (Gerund)
In short, use "reminisce" when you need a verb, and "reminiscing" when you need a participle or a gerund.