To build upon JXG's answer, the Halachah is clearly that you are not allowed to speak unnecessarily in between Berachoth and that for which the Berachah was recited. On the other hand, one may speak in between two separate actions that each have their Berachoth, even if one action is related to the other and speaking is to be limited.
Case #1: Like most Birchoth Mitzvah, if one needs (NEEDS) to speak for some reason in between washing one's hands and saying 'Al Netilath Yadayim (not HaMotzi; I'll get to that soon), then that is permissible. Otherwise, it is a Hefsek, and he must wash again before making the Berachah. (Also, note that I am using the word "wash" to include the entire enterprise of washing, raising one's hands and drying them, as the Berachah is recited on the entire process, not just the water being poured over the hands. If one speaks in between washing and drying, and he has not yet recited the Berachah, then he may not need to re-wash, because the Berachah may be recited on the drying; however one should still refrain from speaking once the first hand is washed.)
Case #2 (the case of the Gemara, if I'm not mistaken - if I am, someone please correct me!): If one needs (NEEDS!) to speak for some reason in between SAYING HAMOTZI AND EATING THE BREAD, normally we are trained early on when learning Berachoth that we may not speak between the Berachah and eating, but, as above in case #1, one MAY speak if it is necessary for some reason and for the purpose of the blessing/eating. Again, and this cannot be emphasized enough, it must be because of a real NEED. Otherwise it is a Hefsek and one would have to make a new Berachah (of HaMotzi - one need not wash again in most cases).
Case #3 (the case in the question, and the case with which most people are familiar at many a Shabbath/Yom Tov table, especially with little kids): In between "washing" (again, the entire process - and this time I'm also assuming the Berachah on the "washing" process was recited appropriately) and "HaMotzi" (ie., the recitation of the Berachah - I'm assuming that nobody in this case is planning on talking between the Berachah of HaMotzi and actually eating the bread), it is PREFERABLE that one limit his talking, because the washing was FOR the bread. However, the rules of Hefsek are much more relaxed in this case. The point is that one should still have in mind from the point of washing until HaMotzi that the former is for the latter. If one speaks, but it does not distract from this thought, it is entirely fine. If, however, one gesticulates and carries on an entire conversation without proper words and plays mime games (and I've actually witnessed this sort of carrying on going to extreme levels, all without a word being spoken), then one has very likely distracted oneself with his own silliness and lost track of the fact that one just washed for bread, and it would seem to me that one has crossed the line to where one ought to wash again, although I don't think one needs a new Berachah on the washing except in extreme cases.
However, in none of the above cases does it make one iota of difference whether one spoke in English, Hebrew, Yiddish, Arabic, French, Swahili, or any other language.
"See Mishna Berura 165:7 and 166:2. The Shulchan Aruch HaRav 166:1 and some other Poskim maintain that saying two or three words such as "yes please" or "Of course not" are not considered a Hefsek and are permitted." (Sources and quote drawn from here: http://halachafortoday.com/archivesnetilasyadayim.aspx)