One of the surprise choices at the outset, Tait played on the wing in both wins and scored a famous try in the opening test triumph in Cape Town. Now he wants Kelly Brown's players to make the most of their next two games in the RBS 6 Nations championships to push their claims to selection for Hong Kong and Australia this summer.
"It comes down to games like these. If any of our players are going to get on this tour these are the ones they need to perform in," Tait told The Scotsman newspaper about Sunday's clash with Ireland and the round four match against Wales.
"With Warren Gatland the coach, and Wales being Six Nations champions last year, the Welsh will get a few in, and England will flood the tour squad, so these next two games could be our chance to put hands up. And I think our guys have a great chance.
"They will take confidence from scoring six tries, they know the Irish boys from the RaboDirect PRO12 and won't be fazed by them. But, at the same time, the Irish boys will feel they have a lot to prove after defeat to England, so we're in for an exciting game on Sunday."
"Ireland are never easy and they've enjoyed a good decade, but maybe it's time it turned again. As a coach now, you look at little parts of the game where Scotland are improving under Johnson.
"I studied the England game and, when you go through it, England played very well. In fact, you look at different elements of their play and they were outstanding at some of the things they did, and I can't see anyone stopping them in this championship.
"Our guys did their best to stick with them while England were desperate to put the game away, and, for me, the good thing was that Scotland showed that they're not scared to play rugby.
"They changed directions, broke up the game, took it off the top of lineouts, and they put away two half-chances at Twickenham and then the boys finished well to get four tries at Murrayfield against Italy.
"The English Premiership is strong, and the defences are very strong, so for us to score two tries down there gave me hope, and then the times they scored against Italy were as pleasing as the tries."