Scotland manager Strachan was happy with most of the 5-1 win in Malta in their Group F opener and the second half of the 1-1 draw against Lithuania on Saturday, which required an 89th-minute leveller from substitute James McArthur.
"So far, of the two games, three quarters has been good," said Strachan.
"In the Malta game, apart from a couple of minutes in the game, it was good, professional, I liked it.
"The second half the other day, a lot of crosses, chances, excitement, we got that. So three quarters have been good so we have to take it into 90 minutes tomorrow."
Strachan believes his side have shown they have the mettle to deal with set-backs as they prepare for what he believes will be "a different game" to the one which frustrated the Tartan Army at the weekend.
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"The ball won't be going so long and it was not just Lithuania, we joined in as well," he said.
"There was a few good performances, their attitude was first-class again, going a goal down to come back and they dealt with the body blow of the goal in Malta.
"So we have that in our locker, we can deal with that."