For alert yourselves to notice wholesome giving mind from self:
Visuddhimagga-aṭṭhakathā Brahmavihāraniddeso Mettābhāvanākathā
 sabbapaṭhamaṃ pana "ahaṃ sukhito homi niddukkho"ti vā, "avero abyāpajjo anīgho sukhīattānaṃ pariharāmī"ti vā evaṃ punappunaṃ attaniyeva bhāvetabbā.
8. First of all it should be developed only towards oneself, doing it repeatedly
thus: “May I be happy and free from suffering” or “May I keep myself free from
enmity, affliction and anxiety and live happily.”
THE DIVINE ABIDINGS
page 292 (350 by pdf page number)http://books.google.co.th/books?id=B_UW ... &q&f=falseThen, mettā to the others:
"abyāpannacitto hoti appaduṭṭhamanasaṅkappo~ 'ime sattā averā hontu, abyāpajjā, anīghā, sukhī attānaṃ pariharantū'ti.
an. dasaka. cundasutta, paṭhamasañcetanikasutta, etc.http://tipitaka.org/romn/cscd/s0404m3.mul20.xml
(I don't found translated version.)My comment:
Your both verses are correct.
However, translated verses will be better for bhāvanā, if you aren't pali scholar.
I memorized verse of mettāsutta
, and khandhaparitta
(ahirajasutta). Then I always player those suttas to notice mettācitta, and dosacitta that relate with those sutta's subject matter such as dosa that arose when I faced a snake, or mettā when I saw some good boy. Then I will try to pause the same dosacitta and bhāvanā the same mettacitta.