This is the 922nd most frequent Malay word.
selalu
Always.
In this sentence, 'selalu' means 'always' and refers to an action repeated on a consistent basis (waking up early every morning).
Saya selalu bangun awal setiap pagi.
I always wake up early every morning.
Here, 'selalu' is used to indicate a habitual action ('bringing an umbrella') regardless of conditions (such as weather).
Dia selalu membawa payung, walaupun cuaca cerah.
She/He always brings an umbrella, even when the weather is clear.
In this context, 'selalu' conveys frequent occurrence of a particular behavior (forgetting names).